"I was a S-W loyalist from about 2002-2005; at some point, they changed their colorants and I was really unhappy with the paint that I used circa 2006.
I converted to Benjamin Moore and was quite satisfied with BM for a long time (for that price, you should be). My local store that carries BM cut back their hours significantly, so I decided to give S-W another try.
I was surprised to see the paint had changed significantly - my old "Super Satin" had been replaced with the HGTV satin. I really like the texture of this paint - it seems to roll well and smoothly. I have no issues cutting in with it (I use the Wooster Short-Cut brush; love that thing).
The only thing I really noticed was that it does seem to "splatter" a little more than the old paints, which is really of concern if you're doing an accent wall or similar; you have to cover a lot of your intersecting wall to make sure you don't splatter onto it.
I don't find it to be a one-coat coverage paint, but I never found the old Super Satin to be either; never trust any paint that claims to give one-coat coverage. (Always, always, always do at least 2 coats. Personally, I like to do three coats, no matter what brand of paint I'm using. I think of the 2nd coat as finishing the job, and the 3rd coat as an insurance policy.)
I was pleasantly surprised that the HGTV satin is a lower price than I remember.
Over time, I will monitor the paint for its quality. I bought some darker pigments, and I know that is where the other "bargain brands" (a la Behr) fail miserably - Behr paints in darker pigments will "chalk" over time, whereas I've never had that happen with a darker pigment S-W."