I steer clear of anything that starts with "Pro" because it is builder-grade architectural paint, AFAIK.
If you need to save a bit, use the cheaper stuff for the flat wall paint if you believe you might change colors in a few years, but use the best you can afford on the trim, it is an amazing span of difference between cheap semi-gloss and real trim enamel.
IMO paint is a marketplace you really get what you pay for.
Casey

Cashmere for the walls, Pro Classic for trim

We've used SW Duration Matte in two houses now. I love this paint. Looks great (I use the Pro Classic in semi-gloss for trim) and wears very well. Doesn't burnish if you need to scrub at it. I even use it in kitchens and bathrooms, and there are no "water marks" on walls like you sometime see in a steamy bathroom.

My favorite part, though, is that touch-ups are practically invisible. I can spackle, then dab on a little paint with a foam brush and you can't tell. It's great!

We've used SW Duration Matte in two houses now. I love this paint. Looks great (I use the Pro Classic in semi-gloss for trim) and wears very well. Doesn't burnish if you need to scrub at it. I even use it in kitchens and bathrooms, and there are no "water marks" on walls like you sometime see in a steamy bathroom.

My favorite part, though, is that touch-ups are practically invisible. I can spackle, then dab on a little paint with a foam brush and you can't tell. It's great!