I got my new ABS' for Christmas. The few years before that I had the Dexter SSTVs and SST6s. The ABS shoes are more comfortable, it is not even close. The reason I got new shoes is that the SST6s did not hold up well. The rubber on the push away foot was coming off on the tip (where I do not drag that foot).

You get a little bit more with the ABS shoes, and it takes alittle bit longer to get used to what sole/heel you will need to use. You have the option to use the cleets or the entire sole, which for some would be a better selling point.  They cost slightly more, but they are well worth the extra cash.