The best thing about this is that it's easy to maintain, thanks to the clam shell design. The trigger pull is adjustable, so you can make it so short that even if you have the safety on it will still fire. The batteries last a long time so you don't have to keep a huge amount of 9v's in your tool box. The modes, other than semi-auto, are nice to have as backups, but aren't really necessary. If you shop around, you can get it at a much better price than if you buy it at MSRP.
It's hard to find the right dwell setting if you're using the LP kit. The only problem with that is that it guzzles gas. The barrel is the first thing you want to upgrade. The wires connecting the battery to the switch are very fragile connections, so keep a soldering iron handy until you're used to it. If you use CO2 then you're in for a world of hurt.
This is a really great gun for any level. Also, because not many people think about the electronic 98's, it's really unique. You should see the people that gather around me at the local field asking about it. Works like a dream. Just make sure you have a barrel plug/condom on it at all times because, as I said, the safety doesn't work if you have the trigger pull short enough.