I did a lot of comparison shopping and decided to buy the Rand McNally 7" GPS.  Has better graphics than Cobra 7".  It does have lane assist which is important when in large metro areas and need to be in correct lane for exits, etc Atlanta, GA.  I have read some of the negative comments written earlier and I do not have those problems.  Sure, sometimes it does not give the fastest or the simplest route but it has never sent me down a non truck route like all the prior gps i have had in the past.  I am a car carrier so I set truck size at 13' 8" and it has kept me from going down roads with 13'6" bridges.  The only negative comment I have is that it constantly changes map views from city to county to state way to often.  Other than this, I love the fact that:  1) it shows mileage to destination, arrival time (which you can change to time left),  2) shows the city, county and state you are current located (how often we truck drivers pull over at a rest area or truck stop and wonder what city we are located).  3) large 7" color screen for easy viewing and screen changes automatically for night time driving  4) list truck poi and non truck poi (wish Rand McNally had a feature that would let us send them an update for poi, maybe when we get at a Loves that use to be a Pilot, just tap on the screen and edit info, then when I connect gps to computer for weekly update the map will get updated.  5) able to update construction info by linking gps to computer and get updates given to Rand McNally by the states.  Unfortunately like usual  the states are mostly behind on updates given to Rand McNally.  This is where we the consumer should have the ability to tap screen and make corrections and send it to Rand McNally.  Many times I have gone into areas that it said "Construction Ahead" and no construction is being done because it has been completed.  6)  speed limits of highways and Interstates and shows your current speed just below it (also shows truck speed limits in red) Still the states have to report these limits to Rand McNally and as usual they are slow on reporting.  But still most of the time 95% it is correct.  7)  great truckers tools like driving hours left.  It automatically changes to driving when truck has moved for more than 1 mile and changes to off duty if it is idle for 15 minutes.  It lets you know when you have 1 hour left to drive and that driving time has expired. You reset every day manually.  Also have total hours worked for day and hours left to work for the week. You will have to manually override this sometimes because it doesn't distinguish off duty and on duty hours well, you have to manually tell it you are on duty.  I just manually configure at the end of the day.  The important one is driving hours and end of the week hours.  8)  service reminders for your perimeters you set, such as 8000 and 16000 services.  You reset manually when completed.  9)  able to set many multiple stops set and ability to add more stops in route  10) loud enough to hear spoken text to speech street names over engine noise (and believe me my truck is loud)  11) ability to save your own poi (I do it all the time)  12) it tells you when you are 3 miles from approaching a weight station (you can configure it up to 5 miles)  13) it tells you when you are 1 mile from state border and tells you when you cross border and what state you are in.  14) it tells you all mileage you driven that day and mileage by state and mileage by day.  saves info for 1 year.  Overall, this is definitely a truckers friend and I absolutely love this GPS.  A definite must buy.