I guess it is horses for courses Flint.
Pump-ups? My preference is for a spring (with wood stocks) as I cannot be bothered with all that work-out preparation before shooting
I have used a friends Sharp and they are very accurate, quiet and I for those reasons I would have one myself if I could only lay my hands on a good one within my budget.
I have a couple of FEG's and a nice model 22 that suit indoor, although, if you want quiet shooting it is maybe not the answer.
There is always a radio at volume or the the 1812 overture to fool the neighbours