On the main website we put up a new comparison of the Max, Max2 & Escort Redline radar detectors. In short all 3 of these detectors are really some of the best windshield mounted radar detectors that have ever been created. The Max since it was was introduced has really come a very long way and while it did have a very rough introduction with each firmware version the unit has become much more stable.
The Max 2 although I cant understand the naming makes you think its a next generation product but its really the same detector but they now added a Bluetooth chip inside the detector so you no longer need a separate Escort Live cable to connect to Escort's Escort Live service. They really in my option named the Max 2 incorrectly and there should be the Escort Max and a Max BT (Embedded Bluetooth).
In any case the Max & Max 2 are very good detectors now. My preference for raw range is still the Redline but the Max Series are much better than the 9500 series that they replace.