I bought this video for my 82 year old mother-in-law who is quite active despite severe arthritis, but beginning to slow down rather alarmingly.
The short form is broken down into exercises that are easy to follow and quite relaxing, however if you are buying the tape for someone who is hard of hearing, I don't recommend it unless you plan to exercise with them and they are comfortable in admitting that they cannot make out many of the verbal instructions, all of which are quite important to doing the exercises correctly. Though she has top of the line hearing aids, the nature of the sound track makes it difficult to distinquish many of the instructions over the background music and white noise.
Other than that, I highly recommend the tape. Though the exercises appear to be easy to a 45 year old such as myself, they seem to be at just the right level to challenge an elder without wearing him or her out. Though I feel refreshed after completing the exercises, she is tired, but still up for a walk. Another feature that I truly appreciated was the total lack of condescension expressed by the instructor toward those who may have trouble doing some of the exercises as he suggests easier alternatives.