The Good: Sturdy construction and quality 41thermal tubing. I love gusseted frames, especially on the Dt/ht, so this fits the bill nicely. CS brake mounts are functionally better than SS brake mounts so if you run brakes (I don't), this frames for you. Long top tube length is great (I had the 21.25), very stable and yet responsive on all terrains. Good stable HT and seat tube angles. Also, I like the fact it doesn't have the wave DT, the frame is very clean yet sturdy looking.
The Bad: The only thing I can say against this frame is that the DT gusset could be a little more ovalized (I never had and issue but this can be a point if stress and easier to crack the weld on a flatter gusset, than one who's weld "wraps" the DT more). Also the dropouts could stand to be a little thicker. Also, if running a brake, you must run at least a 28T sprocket, and even with a 28T it is almost rubbing already so it slaps quite a bit.