On masterxchange and other websites it looks like MSC/BTC is traded regularly. But when I look for an MSC wallet all of them are coming with a lot of warnings about being experimental and how only wallets with small amounts for testing should be used with them.

Despite their alpha status, is anybody here using one of the wallets to send MSC frequently and can say something about stability of these wallets? Which wallet has failed on you, which one was reliable so far? Any experiences?