Well taking a look at the gun and then product manual I can say a few things
-One accessories will be limited on this gun. I dont see milling on the diagrams for response for egrip and the gas thru grip would limit electronics, beyond had milling. Also the trigger guard looks intergrated so no aftermarket trigger.
The power tube and hammer look similar to newer markers as well as the bolt but when have those really needed upgrading anyway.
There looks to be no exhaust output on stock tubes so id say no cyclone feed for this guy.
In short no upgrades besides a barrel and hoppers.
-Two this thing looks a like a dream to maintain compared to every other tippmann made and since it is mainly marketed toward fields anyway i can say the reliability will probably be top notch.
IMO it looks to be a rock solid gun and probably be a decent gun to keep laying around as a loaner or to take a break from your usual high speed gun.
Ive noticed BT has a similar marker out as well
I cant say how customizable their marker will be but both will probably be rock solid guns
EDIT: after reading the post i see that the BT slice will most likely retain more accessories to add on p;us both are out on the market at the same price