Hi There;
I concur with James, the Choroszy kits are of excellent quality. I will qualify that by saying that sometimes their instructions can be vague as to location points during assembly but that reputedly varies from kit to kit. It also something most modellers above absolute beginner level can work out easily. Most people who build their biplanes replace their resin struts also, as their strut quality can vary with broken struts not being unknown either.
Finally, you'll need to watch the resin dust if you are sanding it as it can be very deleterious to your health. ventalation or a mask is a mask, as is a thorough clean up of the dust afterwards. One way to avoid the dust issues is to wet sand with wet and dry sand paper however...
Overall, their kits are well worth money, there is an extensive range, and they have a strong reputation for accuracy.
Their website (already posted by Mikko) is jam packed with interesting subjects... if only my bank account knew no end.....
HTH
Cheers
Neil