I had only one experience in the snow. They behaved as I would expect All Season tires to behave. They got me through with some wheel spin. I usually drive with Blizzaks.
These tires are worth the expense. They are quiet and track well. I am glad I went with the T series as opposed to the H. Handling is secure (and I push the tires hard). I have been in major downpours at 60+ MPH and never felt like I was losing grip. No issues with alignments.
Awesome tire. Paid 500 at a local tire shop. Glad I did not get the H rated version. The T tire is composed when pushed hard. I wanted something that would smooth out the road a bit and offer a quiet ride. These tires meet my needs. I drove in one snow storm. I had pulled my Blizzaks off by then. Tires held up well.