I bought a Titan Mohawk in .177 when the model was first released. I remember paying about £200 for it, complete with a small silencer.

I attached a 4x32 scope on it, and found it quite a nice gun to use, once the cocking and loading sequence was mastered - accurate enough with RWS Superdomes or H&N FTT.

IIRC muzzle energy was about 10.5 ft/lbs.

The only issue(s) I remember is that it quite often leaked air, and this seemed to be due to grit and dirt getting into the gun during the pumping process. I recall that one had to release the cocking arm from the locking pin and unscrew the cocking arm pivot bolt.
Then remove the arm complete with a felt washer(?) that needed to be cleaned. There may have been a rubber seal in there as well....it was quite a few years ago.
Once any grit and grime had been removed, the gun could be reassembled and worked OK for an indefinite time.....

I'd probably have another one, but in .22 this time.

I PX'ed mine for a .177 Original 35 that had a bit more poke but looked a bit bland by comparison