Owned about 5-6 various model Ruger .22 pistols (Standards, MK-Is, and MK-IIs) over the last 30 years, and still have one of the MK-II 22/45 models. Great guns, solid performers, very accurate once you find one or two of their favorite loads. My current MK-II:
I know, I know, the slip-on rubber grip sleeve doesn't help the appearance, but it sure helps my grip. Function over form for me (in most cases).
"Placement is power" -- seen in an article by Stephen A. Camp
(RIP, Mr. Camp; you will be remembered, and missed)