Sure, the loading and unloading can get a little tedious, but I intended mine as just a casual plinker, so it isn't a big deal ( and with the current cost of .22 ammo, it's kind of a good thing to be forced to slow it down a little !)
A few years back, it dawned on me that I was without a .22 pistol in my toy box, and i started looking around. I'd owned a Walther P22 before, it it was fine, but the problem with semi-autos, especially .22's, is that you need to embark on a PITA campaign to find what ammos they like and don't like.....usually just to end up back at the quality,hot stuff from CCI like Stingers and Mini-mags, which were/are more expensive than the 500-rd bulk boxes from WM.
So, having been on a bit of a revolver kick at the time,getting one of those seeemed like a no-brainer.
I gave a look at the Heritage, but like with the Taurus-vs-S&W dimema, they just didn't save you much money over buying real quality from a solid comapny, so that put me at Ruger.
As chance would have it, we had a gunshow in town, and I went right down, and I found ONE Ruger single six in the whole place. It was made in the early 70's, was basically LNIB with manual, 22mag cylinder in the red felt bag, and I got the guy down to $300, and couldn't be happier.
Unless you can score one cheaper on Armslist, I'd go for the new one at your LGS.