I now have a power rack so I use that for weighted pull-ups but I got one of these that came with P90X ~10 years ago and it is still in our doorway. Added some furniture felt pads to where it meets the door frame as it was putting some small impressions in the wood, but it has held up great. I wouldn't do weighted pull-ups or any type of "kipping" pull-ups on it.
I've got the P90X bar which is quite nice