We haven't had the shed long enough to know how it will hold up but the installation was a bit of a challenge and took a weekend to put it together.  Don't be in a hurry, be prepared to use the shims and also improvise where needed.  The parts come marked and the hardware was organized in packets for each step.  This was so helpful as we progressed through the installation.  In the instruction book you'll find occasional Q codes you can use to get online to see videos. The videos were helpful in certain spots where the instructions were contradicting.  So far so good but we installed the shed under a deck so it'll get shelter from the elements. We also had a reasonably level concrete pad for the base.