No experience with this particular gun but lots of experience with similar concept pistols. I'd be skeptical of it's accuracy beyond minute of beer can at 10 M. Generally speaking, co2 power guns that run on a single 12gr cartridge suffer from inconsistent and diminishing velocities as you get past 20-30 shots or so. Also,they suffer more when rapid fired and/or in cold weather. Consequently, when you look at air pistols used in even informal 10M competitions, ( and capable of coin sized groups) they are usually singe stroke pneumatic or bulk fill co2/air.
Exceptions are very rare ( but do exist IF the manufacturer puts $ into the valve design as well as the barrel.).
All that said, if your looking to knock crab apples off a fence on a summer day, it might be just fine for your needs.
You might try asking over at the yellowforum though. Those guys are plugged into ANYTHING airgun related.

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Dave