I have had a Sig 1/4 C/W Cub, great build and good quality, excellent flight performance.
I have built a Balsa USA Fokker DRI, the kit was good but I felt it lacked a bit of the quality that the Sig kit had. I do have a Sig 1/3 Space Walker going on the table next.
The Sig 1/4 Cub is what they call a craftsmans kit, it does require a lot of building but it will make you a much better modeler for your efforts. Nothing a newbie cannot build you just have to think and plan your way thru it and RCU is always here for help when you need it.
BTW: I now fly an AMR 33% J-3 Cub, the bigger the better

Anthony