Hobie input...

[mg2969]

I'm 6 ft and 235lbs
I luv my revolution

The pedals on the fins are adjustable

Regarding the drive unit
I don't think they're flaky. I think they're mechanical.
and anything mechanical which involves motion wears out.

My only negative comment about Hobie would be the warranty.
Specifically the length
from their website
http://www.hobiecat.com/support/index.html

"All hulls are covered for a period of two years.
Mirage Drive (pedal system) is covered for a period of one year."

I think when you consider the possibilities of failure
and the idea that your paying probably double, a longer lasting warranty
should be considered.

I believe Malibu and Cobra, as examples, offer lifetime warranties.
Ocean Kayak has a 3 year warranty.

my 2 cents
MikeG