The most important feature for me is that the SSD will not fail for at least 7 years for an advanced home user, which I believe I am. This is why having at least a 5 year warranty is important to give confidence that the 7 year target will probably be achieved.
(Top SATA III speeds way faster than spinning hard drives is a given, since that is why the SSD is used in the first place. I don't need, and probably won't notice speed increase beyond SATA III top speed for what I do, explained below.)
I use my PC every day, averaging about 5 - 8 hours of web browsing, youtube playback, and documenting everything I learn or need to remember in word processor documents and spreadsheets. I do advanced photo and video editing after attending special events or after vacations. I'll probably change computers after about 5-6 years which is why my target SSD life is 7 years to be on the safe side.