Just picked one up at my local Airgun store.
Got version with solar powered compressor, so I not dependent on electricity to run compressor. After every shot compressor runs for few seconds to replace air in tank, the tank is always full.
On the remote control you can set:
1. Refill after every shot.
2. Refill when pressure reaches 200 BAR.
3. Compressor off(refill by other means).
4. Purge mode - compressor drains any moisture from water separator filter.
Shooting FX Halo slugs at 3250 fps, first group was 0.001' MOA at 600 yards, still needs further testing to tighten up group.