The AE, gets you all the OBDII powertrian, the additional bundles are for enhanced or OE exclusive codes, ie: instrument panel, HVAC, ABS Brakes, SRS, Seat Control Module, the list goes on and on, depending on the make/ model year. Also does bi-directional controls, or runs the built in tests.
Wont you dont get, is a "trouble shooter" that you get with the snap on diagnostic tools which from snap on is or was an upgrade as well.
The AE will allow you to graph 4 sensors, in 4 different colors on one page at one the same time live, and for as long as you have hard drive it will record. Solus will too, the laptop is much easier to see/look at/use.
I have the AE Pro Domestic Bundle, I dont come near any of the imports and work almost exclusively on trucks/suvs. For the $, in comparison to the other tools, its a smoking deal, not to mention with the laptop, you can actually make out what your looking for (as in see it). I also have a Snap On MT2500 for the OBD1 stuff, and have used the solus, and the Genesis (avoid like the plague). I'm running AE in smaller IBM thinkpad Xp Pro (corporate surplus) that I got NEW, as in never used, but is 5 years old on ebay for $100
For the $700 for all the domestics, its a bargain. The Solus is a better, more friendly tool, if you can afford it. Plus compare the $ for updates for both. Id say if you're spending most of your day with the scanner, you might not want to screw around with the laptop, just my 2 cents, but if you spend most your time flipping wrenches and not with a scanner in hand, allot of bang for the buck with the AE/Laptop.