I bought version 2 a while back, I thought it was awful especially how tricky it was with the orientation of faces. I stopped using it, buggy as anything. I then had a go with the Punch version (4.0) a vast improvement but still a bit "buggy" After persevering for about a year ( using now and again) Version 4.95 is very good indeed. I have tried a few (cheaper} render engines. Raylectron is the best money I have ever spent, and the support is second to none!