The best way to find out is to read this forum. All the information you need to make a purchase decision is available. May be that‘s a little annoying, but we all went this way here. This is the best way to familiarise yourself with this hobby.
I've been wondering about this as well. Saw a recent post on this forum comparing a gen to an XF/V6F V4 and XF V5 pieces. The post should be easy to find. Tons of great information there.