Yes it's worth the time. You don't give the rest of the dimensions but the height is ok that's probably enough space to keep yourself supplied with what you need.
Hop on youtube and look up drbudgreengenes. In a cabinet about your size he grows a perpetual harvest enough to supply him and his wife forever. The trick is small plants, several of them, and rotating one clone in and one mature plant out per week. He has at least a z of fresh weed every week and that's with just 5 small cfl's that cost less than $10 ea.
