Iron Gym pull-up bar

As a frugal guy starting an exercise program, I didn't want to spend $45 on the pull-up bar available from the local Sports Authority store.  Checking on Amazon, there are many less expensive products available.  There are tension bars, which are supposed to stay up because of tension place on the door frame.  These cost about $15, but many people complained that they come loose too often.  The other style of pull-up bar is the frame hook, where you use the moulding around the door frame to hook the device on.  Prices for these are generally in the $25 range when shipping is added.  After reading the comments on several of these, I decided on the Iron Gym for $27.50.  It doesn't look as fancy as some of the others, but it should fit my 24"-wide 6"-deep door frame.  We shall see if the quality holds up to the praise.