My Ultra Varmint 22M has taken the place of a custom built Win. Low Wall/Mdl 52 HB 22M and 3 Hornets that I handloaded cast lead bullets for. It is not in the same class for accuracy as my BSA Martini International MkIII 22LR, but most 22 M arent (at least Ive never seen one that is). As a field gun and fun little steel silhouette shooter its good enough for me. If I 'needed' a faster/heavier bullet 22 it would likely be a .223. The ammo offerings for the maggie are pretty good now, from light/fast to (chrono'ed) 1500ish fps 45gr flash plated lead HP Win. Dynapoints that I like. If I ever find some of those 50s that CW shoots I'll try em too. Ive even heard that the 1350ish fps WRF work, but those Dynapoints are good for me.
I say get it, you dont see them very often, and if it doesnt suit you somebody else here will likely snatch it up quick.