If you mean FX Royale, haha no not a "terrible" gun by any means. I am biased definitely as I've had my Royale 500 (.25 cal) for a year and half and put 14500 pellets through it and only replaced a few o-rings. I found a used .22 smooth twist barrel for cheap and bought the pellet probe and guide from FX, now it's .22 and .25 my choice!
Pros Can be broken down in minutes and reduced to a pile of parts. SUPER easy to work on,
Accurate the original smooth twist barrels are amazing I've shot many many sub MOA groups at 100m (109y)
Easily tuneable by adjustments alone you can get 60FPE in the .25 and over 40 with the .22 (53 with 24 inch .22 LW barrel
Parts are available
Can be multicaliber as they made .177, .22 and .25. Just swap in a different barrel and change pellet probe/probe guide over and it's another caliber. (I can change in under 5 minutes with a few hex wrenches)
Deadly reliable, simple and proven
Has easy access to adjusting regulator, adjusting hammer spring, and changing transfer port size. (reg and hammer spring tensioners require removal of 1 screw then the stock)
Trigger and cocking action are excellent
Air tank is removable when charged, it has a check valve so you can degas without draining the whole tank. Just unscrew it.
Speed/power can be adjusted fast and easy, from 450fps indoor plinking to ? full power. Just remove one 4mm screw at the bottom of stock, remove stock and there's the 5mm adjuster. Literally takes 20 seconds and can be done anywhere.
Cons It's an older platform, been around for probably 8 years or more.
Earlier ones the stock is not ambidextrous (I shoot left so it matters to me)
Very early guns are not regulated, but this can be changed with drilling a hole and adding a regulator if wanted. And possibly a hammer weight, i'm not sure.
Has the aluminum bottle, weighs a pound more than the CF one used on Impact and Crown but if you want you can buy one and it'll screw right on. I did, and keep the aluminum as a buddy bottle
Do a search here on FX Royal
E, lots of info.