Like several others, I had a lot of trouble with my Marlin Cowboy II .44 mag. First, it wouldn't cycle. No matter what type of .44 cartridge you put in it, it wouldn't chamber. My dealer had it repaired, so that it would cycle. Then, when I finally got to shoot it, my target looked like a shotgun pattern. It was all over the place. My dealer took it back in a trade.
Later I got a Marlin .357 CB. I hadn't heard anything negative about their .357/.38 guns (only the .44s) so I thought I'd chance it, and it is a dream gun.
Still, if I decide to get a .44 lever gun, I'll go with either the Puma or the Henry. Puma has a new octagonal/case colored rifle that sure looks good. But then, the Henry is American made, and I've heard really good things about their customer service. Both of those things mean a lot to me.