Hi I'm a first timer allotmenteer. Took on a huge weed bed late last summer and all I can say so far is it's the biggest stress-buster going!!
There is nothing more relaxing than pottering around an allotment as the sun goes down... you soon forget about daily stresses.
I work full time but the odd half an hour after work soon turns into a couple of hours and before you know it you are there every spare minute.
I'm really looking forward to my first growing season. I have a lot to learn but the best thing is there are always people who just love to help.
My advice is give it a go, you dont have to use all your plot, so you can make as much or as little work as you want.