Which ones do you have?
What do you like and or dislike?
Which ones would you recommend?[/QUOTE]

I have pvc ones
insanely loud sounds like a Cessna taking off
I would BORROW rollers and buy /invest in the least expensive watt trainer ( I bought a used computrainer for $600 )
I think after you learn to ride the rollers for 20 min you have gained about all that they can offer.