I just got one yesterday. It's from LifeWatch. Seems pretty small and easy to carry around. The unit is a little bigger than a pager. I tried sleeping with it last nite (because I wake up w/ palps sometimes), but the plug going into the m/c came off. You are supposed to phone in an event after you record it (it is an acoustic modem I think), and it can hold upto 3 events ( gets reset every time you transmit it to the company).
I asked the nurse when I should record it. I had a couple of dizzy spells last week but I may not have them in the coming month. She said if you have a tight feeling in your neck or a buzz in your head go ahead and record it. I don't think I have abnormal rhythms though, I always get a pulse, it's just that lightheaded feeling and almost a lump in my throat ( have been reading the afib thread ).
Overall, it seems pretty easy to live with it, except for the extra time you spend every time to put the leads after a shower (which in my case, with the morning rush of getting my son to school and get to work, is a big deal). They said the leads last 2-3 days, but I can't go that long w/o a shower!
Good luck!
Nupur