I just bought ROF too as I found ICE edition on special offer for around £5 online.
I have to say that it is a nice looking sim and I can imagine I'm going to have a lot of fun with it. Is it better than CloD? That is a hard question as CloD is a WW2 sim and ROF is a WW1 sim....
As far as complexity is concerned... (Steadies himself for the rotten tomatoes).... It kinda reminded me of flying the Tigermoth in CloD... but with guns.
All in all I don't think ROF is half as bad as many on this forum would have us believe. I don't expect anything more complex as, simply, the technology of that era doesn't demand the same level of complexity as does the time period of CloD.
Now the big question: Which is better looking?
CloD hands down! But ROF isn't ugly by any stretch of the imagination.