The Ruger 10/22 is a fine gun choice as well. They really don't have any food problems, and they have a ton of accessories available should you want to modify it.
I own a CZ 452 which is a bolt action .22 LR gun. It has a really nice walnut stock, but the factory trigger is meh. It still shoots incredibly well with the stock trigger. A true tack driver as the saying goes.
One thing you will find with semi-auto .22 pistols is that they do tend to jam more than their rifle counterparts. Use a better quality ammo, and keep the gun clean and lubed it will jam less. I own a Ruger MK III which is very similar in quality to the Browning Buckmark .22 as far as the tests and comparisons I've seen over the years.
Let's face it, .22s are just dirty rounds, and more cheaply made rounds than most other calibers. They are just prone to having more problems. If you want perfect reliability, you really aren't going to find it in the .22 LR caliber.