I have had one for about a year, I got the walnut model. I love the little thing. I don't seem to have a problem with getting tight groups at 50 feet, even with iron sites.
When I first started shooting it, right away I was surprised at how much rise I would get, even with a standard 22 round. Enough that it was throwing my shots high and making the groups spread. I started using a support hand forward grip, sort of a modified riffle style grip, and it settled down nicely. Because it has a lot or weight forward of the grip, I though it would run well as a single hand shooter, but, as I said it didn't work out that way, too much rise. needed to have left hand on for-stock and a little forward - back grip pressure to settle it down. All this may be different with the polymer stock.
As to high end target shooting modifications, like bedding and such, I don't think this barrel is really match grade, at least not enough to start that level of work on it. Don't get me wrong, it is accurate, but its value is as a low cost fun gun plinker, not ultra match.
It shoots a Calibri round very nicely, the barrel length getting just about the most you can get from this round without any risk of the bullet not clearing the end of the barrel. (can't really trust a Calibri in riffle length barrels because the bullet may not travel the full length of the barrel.
Note: because it has target pistol grips, it is NOT ambidextrous.
Also, nice to note, that even though it is not on the CA DOJ approved list, it is a true single shot so it is single shot exempt so you can buy them through any dealer in CA.
final note, look at both the Crickett and the Chipmunk web sites, they are the same company but have a little different line up of the same gun.
http://www.crickett.com/crickett_hunterpistol.php
http://www.chipmunkrifles.com/chipmunk_22_pistol.php