For the money this is an excellent hitch mounted hoist! Keep in mind "for the money." This is the only hoist I've ever purchased, but I have seen others up close. I purchased mine as others did to remove and reinstall a 5th wheel hitch in the bed of my truck. The materials seem to be easily strong enough to lift it's load limits at both the 250 and 500lb positions. As noted by other reviewers, it does come up short in a couple of areas. First, as you can see in a couple of photos some nylon spacers would have been a very inexpensive parts improvement for the function of the lift. If you don't have the spacers on hand, and you don't want to wait assembly until you can purchase them, it hardly seems worth the trouble of retrofitting the lift. Also, on the front wheel where the cable exits the boom, a pulley with a retainer would keep the cable from jumping off the wheel, which it does relatively easily when a load isn't present. The other option would be to do what another reviewer did and that would be to place a bolt through the boom just above the wheel close enough to keep it from jumping its track. CAUTION: Be careful not to drill too large of a hole in the boom. I'm not an engineer, but every additional hole which is drilled in the arm, potentially weakens the boom, and would most likely void any warranty,or legal claims for damages or injury from the manufacturer. That said, this is still a great lift!Also, as noted by everyone else, there are no instructions for assembly, which is crazy! It would be so simple for the manufacturer to include instructions for assembling the lift. Maybe it's a way of avoiding liability, but to me it's just negligence on their part. But, I'm no attorney, so maybe it's just an oversight, however, with all of the reviews noting this difficieny, it would be so simple to rectify. I've included a photo of the exploded diagram of the parts which is included. Couple of problems with this diagram as well: 1. It lacks detail. Most parts are obvious as to their location or positioning, but there are several instances where the parts and/or their position aren't clear. Several times I had to reverse course and remove and reinstall parts in their correct position. For most individuals that would be purchasing a lift to begin with, assembly won't be difficult, but it would be so much easier with instructions and even a second sheet with black and white photos of those areas which could use more details.One plus on my lift which other reviewers noted as problematic is the spooling of the cable on the winch. Others complained of their cable being a rats nest, or like a backlash on a baitcasting reel, however mine was perfect. However, it was loose, so I simply had to unwind the winch carefully to keep from creating a backlash, but it wasn't a big deal at all. The one thing I noted was that even though I tried to load the cable under hand pressure to simulate a load, when it came to actually picking up a a load, it pulled the cable deep into the other wrappings of the spooled cable. I'm hoping this doesn't become a problem with future use.All things said, this is a great lift for the money. It worked exactly as planned! Another foot of arm on the boom would have allowed me to lift the hitch and drop it exactly back in to place, but lowering it into place leaves me a foot short. I was able to lift the hitch without any issues out of its brackets, however, I will have to manhandle the hitch back into place. Prior to this purchase I had to call my son and son-in-law to help with lifting this hitch into and out of the bed of my truck. The 5th wheel hitch used in my longbed truck was heavy, but I was always able to lift it on my own from the ground to the truck bed. However, with a shortbed truck I was forced to go with a slider hitch, which is a beast! It was impossible to even lift it off the ground. So, now I should be able to load and unload the hitch by myself. I named my new assistant D2M2, representing the initials of my son and son-in-law.