If you're looking at this because of MotoSpeak, know that the app will work with other brands. I initially bought this unit because I liked the text to speech option.  The ability to dictate texts seemed even better! I used this unit for about 3 weeks.  The voice commands are nice but don't work well.  I found myself getting so frustrated when I'd say, call home and it would call Aunt Sue.  I'd end up dialing from my phone which defeats the purpose of this speaker phone.  The FM transmitter was terrible.  I assumed that it was because I'm in the D.C. area and the airwaves are packed. Eventually, I go so many complaints about the call quality that I started to look for something better.  I purchased the Jabra Cruiser 2 and, so far, I'm really happy with it.  I knew I'd miss the text to speech but imagine my surprise when the unit announces "text message from ...." and proceeds to read it!  I had already downloaded the Motospeak app to my phone and it works beautifully!  I don't think I can dictate a response but it's easy enough to call back if I need to. Also, the FM transmitter on the Jabra unit is awesome!  I can listen to music and podcasts without any static.  Which lets me know its not the airwaves, its the quality of the unit itself.

Points for Motorola roadster:
Pros
Automatically turns on when I get in the car
Uses motospeak to play texts
More voice commands. Can just say "answer" or "ignore" for incoming call.
Can dictate a text response

Cons:
Voice dialer messes up a lot.
Display lights aren't visible, don't know if it lost the connection
If unit is turned off, once turned on, it doesn't connect to phone unless it is first plugged into charger. Could just be a defective unit but a very annoying quirk
sound from unit too low to use in place of FM transmission
Poor FM transmission. Constantly having to change stations which makes it very hands on!
Cuts off the first part of sentece when using phone GPS
only gives phone number not name even though the phone book was downloaded.

Jabra:
Pros
Accurate voice dialer
Display lights are easy to see.
Connects very quickly with my phone.
Good sound from the unit itself
Better FM transmitter (Washington D.C. area airwaves are packed but I get clear sound all around town)
Nice loud sound from unit, can use it if FM station isn't available.
Announces name of caller/texter
When using with GPS, it is clear and uninterrupted.

Cons:
Doesn't turn on automatically, easy to forget
Can't dictate text response

The roadster is headed back for amazon and I'm happily keeping the Jabra.
If you're looking at this because of MotoSpeak, know that the app will work with other brands. I initially bought this unit because I liked the text to speech option. The ability to dictate texts seemed even better! I used this unit for about 3 weeks. The voice commands are nice but don't work well. I found myself getting so frustrated when I'd say, call home and it would call Aunt Sue. I'd end up dialing from my phone which defeats the purpose of this speaker phone. The FM transmitter was terrible. I assumed that it was because I'm in the D. C. area and the airwaves are packed. Eventually, I go so many complaints about the call quality that I started to look for something better. I purchased the Jabra Cruiser 2 and, so far, I'm really happy with it. I knew I'd miss the text to speech but imagine my surprise when the unit announces "text message from.... " and proceeds to read it! I had already downloaded the Motospeak app to my phone and it works beautifully! I don't think I can dictate a response but it's easy enough to call back if I need to. Also, the FM transmitter on the Jabra unit is awesome! I can listen to music and podcasts without any static. Which lets me know its not the airwaves, its the quality of the unit itself. Points for Motorola roadster:
Pros
Automatically turns on when I get in the car
Uses motospeak to play texts
More voice commands. Can just say "answer" or "ignore" for incoming call. Can dictate a text response

Cons:
Voice dialer messes up a lot. Display lights aren't visible, don't know if it lost the connection
If unit is turned off, once turned on, it doesn't connect to phone unless it is first plugged into charger. Could just be a defective unit but a very annoying quirk
sound from unit too low to use in place of FM transmission
Poor FM transmission. Constantly having to change stations which makes it very hands on! Cuts off the first part of sentece when using phone GPS
only gives phone number not name even though the phone book was downloaded. Jabra:
Pros
Accurate voice dialer
Display lights are easy to see. Connects very quickly with my phone. Good sound from the unit itself
Better FM transmitter (Washington D. C. area airwaves are packed but I get clear sound all around town)
Nice loud sound from unit, can use it if FM station isn't available. Announces name of caller/texter
When using with GPS, it is clear and uninterrupted. Cons:
Doesn't turn on automatically, easy to forget
Can't dictate text response

The roadster is headed back for amazon and I'm happily keeping the Jabra.