The first fan we received had a cracked light window, as well as a non-working remote.  AllModern's customer service was fantastic, and we had the replacement unit in less than a week.  The new fan is now installed in our sitting room - it complements the modern-flavored room really well.  It is quiet, powerful, and (since it is installed flush to the ceiling) surprisingly unobtrusive.  As for the installation, it is not too difficult.  But, if you are not a "handy" type, you may want to have a professional install it for you.