I've had a number of them, Diana Mod 2's, Gat Guns, an SP50. Each acquisition was driven by nostalgia and they've all been sold on. As examples of airgun technology I regard them as only suitable for collecting. Much as I've tried thogh, I just can't seem to develop a soft spot for them.
Webley pistols are a different kettle of fish, but even with these, my interest waxes and wanes. My Webley pistol collection is now on it's third go round, but I always seem to have at least one on hand.