It'll get you started and "in the game," so to speak. I've been using one for 3 years now and it runs fine. I've had a couple or three FTF's over the years, but that's not a shocking number - 3-gun is incredibly hard on gear, and everything will jam eventually.
If you want to get super competitive, eventually you'll move to a Benelli M4. The M4 is a better gun on a number of fronts, but costs almost 10x as much. I'm not that competitive, so I'll stick with my Hatsan.
You won't be the only person on the course using it, they're fairly common. The reliability you get for the price is quite impressive.
A few notes:
As mentioned, the loading gate is sub-optimal. You can still double-feed, but you have to "hit it" just right slamming the shells in. You're never going to reload as fast as with an 870, 590, or Benelli M4.
Clean it often and keep it lubed. I strongly suspect that my couple or three FTF's over the years are cleaning related, because I'll skip cleaning sometimes after practising, forget about it, then wake up at 2am the night/morning before a match and remember (by which time it's too late). Again, this is somewhere that the Benelli will win - the Benelli's will run so long as you remember to clean them every few thousand rounds. The Hatsan, notsomuch.
Play around with different makes of shells. It isn't super choosy, but there are some shells they don't like. Winchester White Box, of course, will make them jam. Winchester White Box can make anything jam. Worst ammo on the market, avoid it like the plague that it is.
Replace the Telestock with something else. I would give the same advice for the Benelli. It looks cool, sure, but if you're shooting a lot, and fast, and from awkward positions (3-gun will check all three of those boxes), the Telestock with that partial cheek-rest will cause you grief. Especially if you have a beard and prefer to keep your whiskers on your face.
I only do 3 or 4 matches a year, and for shiznits and giggles, not super competitive, but have fun with it, and generally avoid looking like an idiot. Keep that in mind to put the above info in its proper context.
