Things I liked:asthetics, the "cool" factor got the best of me, however, after a month and over 2000 rnds made it all work with the following:
CenterPoint 4-12x40 AOIR, but most importantly....
UTG Drooper Scope.
As for ammo, the only consistant groupings are going to be JSB Diabolo Exact Heavy .177 Cal, 10.34, and starlings dont stand a chance @ 30-40yds. PBA's are all over the place, but can maintain (cough cough) 7" groups at same ranges :) and JSB Match Diabolo Exact .177 Cal, 8.4 Grains will keep you inside a 3-4" group.
Things I would have changed:As i'm sure you have all heard before:
Ditch the scope, pitch the mount, add the drooper scope and use the weaver mounts. What others should know:Darn fun rifle once you get her all tuned in, and to top it off, will be upgrading the trigger very soon.