Received excellent customer service from Chris at Rack Attack Vaughan, ON location, which was a great way to start off. Assembling this rack was a breeze. The instructions were extremely easy to follow. Once assembled, the rack is a manageable weight (ie. I can move it down stairs and around corners myself without bumping the walls). The first time you mount 4 bikes allow about 30-45 minutes because you have to adjust everything (see all the yellow knobs) so that the bikes interlock well. This only has to be done the first time. After that (ie. for each bike trip), it will only take 5-10 minutes to load up. I have 2 adult mountain bikes + 1 20 mountain bike + 1 16 BMX bike on the rack and the only thing I have to do is rotate one of the adult bike seats 90 degrees due to interference from the handlebars of the next adult bike. This is easy due to having a quick release lever on my seat post. None of the other 3 bikes required any adjustment to fit. One really awesome feature is the ability to fold the rack down with all 4 bikes loaded. I can open the hatch on my MDX if needed. With all the bikes off, the 2 vertical supports fold down so that you can fold the entire rack up against the back of your vehicle. All the yellow knobs, wheel cradles, and ratchet straps are plastic which obviously helps keep the weight down. The quality seems fine. With a lifetime warranty from Saris, I'm not concerned about them over time. I would have no problem recommending this rack to anyone looking for a 4 bike rack solution that will hold various sizes and types of bikes.