Unearthed Arcana "Generic" Classes - Have you used them?

[reveal]

For those of you who haven't seen these in UA, basically you make a Rogue-like character, a spellcaster or a warrior and give them feats/abilities at certain levels. You also pick a set number of skills for their class skills. You can really customize your character's skills and abilities.

Its a very interesting concept but I was wondering if anyone has played a character they created using this generic template.