I switched to SMOS from Windows months ago for the same reason, Windows is a huge pain. Windows is probably fine if you don't have a lot of rigs, I have 12, not a ton, but is enough to be a pain. Reliability/up-time has improved big time, I can go weeks at a time with no downtime or reboots. Trade-off being you're stuck mining what SMOS can mine, which is a decent selection of coins. You have a lot more flexibility in Windows for other coins. For me it was totally worth the switch.
Would be really nice if SMOS had an Android/iPhone app!