I own one full-sized (w/ ~8000 rounds) and one compact CQB (w/~1000 rounds). They are both fine shooters. They both have a definite bias for Wilson magazines.
I ordered both guns from Wilson Combat and had certain changes made to my liking. I replaced most of the MIM parts with machined or Wilson's Bullet Proof parts. This bumped up the cost about $50. I also had the guns done in all black because OD green is not what I consider attractive. The full-size gun came with one plastic guide rod plug in the gun and an extra one in the gun rag. Come to find out, these are disposable parts. Wilson does not tell you this in any of the information that comes with the gun. You can go to the Wilson Combat website forum and read more about it in the General Discussion section. I replaced mine with a full length guide rod, not because I think FLGRs are better performance items, but because it makes a slight difference on dampening recoil (to me).
I have a bunch of CMC mags and Wilson mags. I used most of the Wilson for carrying, older Wilson mags and CMC for practice. When I do have problems, it is almost always with the non-Wilson mags, last round not fully going into battery. This is very rare with the Wilson mags.
Wilson has a long list of suggested ammo for the best performance. Except for Hydrashoks, I don't use what they suggest. My gun has performed well with everything I have put through it.
Wilson boasts that their Armor-Tuff (AKA Armor-Scuff) finish is durable and abrasion resistant. Those words should not be used with that product. I would suggest you opt to either get a blued gun or have it hard chromed.
I would also suggest that you order yours with the trigger not coated with Armor-Tuff because it comes off the trigger and looks a little crappy. If the trigger is not coated, it will be a different color than the gun, but it won't show where the finish has worn off either.
I would have no qualms about buying another Wilson gun in the future, but I would make most of the changes noted above when I ordered the gun. Some things I knew about, such as changing some of the MIM parts, and others I didn't know until AFTER I got the gun, such as about the plastic guide rods and Armor-Tuff issues.