Has anyone got one of those mini bike exercisers?

[MarlowesSister]

Those mini bike exercisers that you can pedal on or even have an arm work out on. Are they any good? I'm tempted as they're so much smaller than an exercise bike and I could do my arms too. Any thoughts on here anyone?

We had one it was rubbish, moved about on the floor too much for you to get any real rhythm going.

My dad has one and it's crap! It jumps around the floor if you put any effort in and I doubt you'd ever get your heart rate high enough to actually make it worthwhile. He only has it because he has limited mobility and refuses to join a gym because he's stubborn!