I recently bought the 42009 after seeing it drop in value. Its my first studless flagship set I've built. I really enjoyed the build, the models functions, and how it looks. This maybe because it was a new type of build for me (previously only built studded models). The only real disappointing aspect is the friction when lowering and raising the outriggers. Whenever I build my models I continually check that there isn't too much friction on the moving parts, however it seems nearly impossible with the amount of gears in the mechanism. Overall I still think its a great model though.