I'm new to the F1 ATR but I've had more than 20 years with the Dash 8 propliners since Just Flight first came out with the PSS Dash 8-300 Professional in 2003.
I've flown the F1 ATR-500 a few times and the software is good. I'll be partial to the Dash 8 tho, given my years and time with that propliner.