The two most common problem areas modelers have with resin kits are gluing and painting. The most important part of assembling any resin kit is to Read the instructions!
There is a definite difference between styrene ("plastic") kits and polyurethane resin kits. While both materials are technically a form of plastic, they are chemically different. Assembling resin kits requires different glues and techniques than used when working with styrene kits.