I have four. Three SmartLoad specimens, one an AeroSmart, although they're all the same below the control panel. Two in daily use, mine and the one mom is using. Two spares that haven't been run or disassembled for examination.
Squeaking is usually either the belt idlers or the drum bearing. A creaking noise may also occur which may indicate the bearing has a fracture.
There's not much to watch during operation other than the drum rotating, reversing. Mangled fingers are a danger so Hands Off! No way to see the clothes tumbling unless a wireless camera is somehow rigged.