I play at BetOnLine a lot. I have not had a problem with the software crashing. I only play
freerolls there because I have heard they don't pay out well. In recent months, I have read that they are paying out now. I don't know that for sure. The second poster in this tread seems to have an axe to grind with BetOnLine because every post about the site has had a response from them.
As for me, I will keep playing freerolls until I get enough to actually cash out. Then I may consider doing a minimal deposit just to see if I can cash out.