Good Quality. Directions & pictures are not the best - so read through a few times and make notes. I assembled this BY MY SELF - so it is doable. Assembly tips: 1) finished size is a little bigger than 8x6 so plan foundation accordingly. 2) apply a thin coating of lubricant to the edges of P04 before inserting into P11 (Front & rear gable assembly) otherwise it is nearly impossible. 3) Check all panel edges before attempting to install into grooves - you can press them down a little and that is very helpful. 4) check grooves on RG/FG/SG pieces are uniform on both sides - before attempting to install polycarbonate panels. 5) directions for vent are beyond vague - and it took me a few attempts to get it right. Take some time looking at the pieces and visualize what it's supposed to do - and you'll get it done. May the force be with you!