The SmartThings-specific issues are the ones that might be better or worse depending on the specific edge driver you are using.
For example, quite a few community members have reported that their GE/Jasco Z wave devices work better with a community edge driver from @philh30 than with the stock edge driver.
[ST Edge] Driver for GE/Jasco/Honeywell Z-Wave Switches, Dimmers, Fans, Outlets, and Plug-Ins