I love my 3300! It has very good depth, great adjustability, very accurate, lots-o-features, light weight/well designed, etc. If it says somthing is there, bank on it! I have found a ton of coins, some rings, jewelery, and tools with this detector, and look forward to using it every time. Battery life for the two 9 volts is pretty good, just the same I bought 9volt rechargables to save some $$$.
I bought mine on a super sale for less than half of the current price, so even with its great results, you might look at other detectors in its current price range just to see how they compare. Good luck, and happy detecting!