I haven't been on in awhile but thought i'd follow up.
It's been just over 2 years since I bought the shuffle tech. We toned the games down to 2x/month due to life changes and having some players fall out of the group which makes it harder to get a game together. I'd say it has easily gotten 150+ hours of use total. It jams more than it use to, but I am also much worse about cleaning it than i use to be. it jams about once an hour but its usually easy to clear the jam. The sound is now really easy to ignore after playing with it for so long. I'd highly recommend getting one if you play somewhat consistently.