I've flown mine many times. It's a crowd pleaser.
Be careful in building it. The root edge on a canted fin should be slightly concave, but the fins in the kit are not. For surface mounting, one can generally make up the difference with generous fillets, but this has TTW fins, so I found it impossible to get them solidly attached. If I had it to do again, I'd sand the needed concavity in. Mine has popped a fin out or loose on just about every other flight. I put it back and fly it again, over and over. The up part is always good, the down part is almost always good, and "check which fin is loose" is a routine part of retrieval. I got sick of making the repairs look good, so I quite bothering and just gave the whole rocket a deliberately ugly paint job.
Be careful in building it. The root edge on a canted fin should be slightly concave, but the fins in the kit are not. For surface mounting, one can generally make up the difference with generous fillets, but this has TTW fins, so I found it impossible to get them solidly attached. If I had it to do again, I'd sand the needed concavity in. Mine has popped a fin out or loose on just about every other flight. I put it back and fly it again, over and over. The up part is always good, the down part is almost always good, and "check which fin is loose" is a routine part of retrieval. I got sick of making the repairs look good, so I quite bothering and just gave the whole rocket a deliberately ugly paint job.