To compare this to other units, you need to evaluate surge suppression ratings in both joules and amps, as well as look at the clamping voltage. When you add it all up, this is the best protection you can get for the money.

This Tripp Lite unit has a very high surge suppression rating (3,300 joules/85,000 amps). You will not find many surge protectors with this high a combined rating. It also has a 140-volt clamping voltage. This means that it goes into action when the voltage spikes just a little higher than the normal 120 volts in your line. Some units have higher clamping voltages, some in the 300-volt range, which means they are not as effective. With clamping voltage the lower the better, as long as it is above the normal line voltage. 140 volts is ideal. (You have to go to the Tripp Lite site to find the clamping voltage specification.)  It also comes in a sturdy metal box, which means it will not melt, as plastic will, if it suffers an energy surge.

I bought this to protect the refrigerator in my new kitchen. If you have a modern built-in kitchen, you may not have space between the wall and refrigerator to mount a surge protector. I found space behind the slide- out garbage bin which is right next to the fridge, and drilled a hole in the side wall of the cabinet for the power cords. You can probably find some such fix if your set-up is tight. It's worth it for the peace of mind.
To compare this to other units, you need to evaluate surge suppression ratings in both joules and amps, as well as look at the clamping voltage. When you add it all up, this is the best protection you can get for the money. This Tripp Lite unit has a very high surge suppression rating (3,300 joules/85,000 amps). You will not find many surge protectors with this high a combined rating. It also has a 140-volt clamping voltage. This means that it goes into action when the voltage spikes just a little higher than the normal 120 volts in your line. Some units have higher clamping voltages, some in the 300-volt range, which means they are not as effective. With clamping voltage the lower the better, as long as it is above the normal line voltage. 140 volts is ideal. (You have to go to the Tripp Lite site to find the clamping voltage specification. )  It also comes in a sturdy metal box, which means it will not melt, as plastic will, if it suffers an energy surge. I bought this to protect the refrigerator in my new kitchen. If you have a modern built-in kitchen, you may not have space between the wall and refrigerator to mount a surge protector. I found space behind the slide- out garbage bin which is right next to the fridge, and drilled a hole in the side wall of the cabinet for the power cords. You can probably find some such fix if your set-up is tight. It's worth it for the peace of mind.