Hi,
Just my tuppenth worth and based on my own experiences with someone who occasionally came shooting with me. Build quality on his one was pretty poor especially trigger and safety system .. oh and barrel mounting. Variable power it had especially between shots (typically up to 50fps different ) Lastly it runs on compressed air and not co2 (they are not the same thing!) so you will still need a supply. It was bloody uncomfortable for me to shoot as well and I considered accuracy of, at best, 3" at 25 yards pretty p*ss poor. After about 6 months of constant tinkering/fettling, including a calibre change, it was sold. There is much better kit to be had for a lot less than their ridiculous price. Stick to a decent springer or save up for a PCP and charger combo.
Mark
P.S the above is me being polite. I could be a lot more scathing