daVinci builds a high quality tandem.
IPS is another matter. As stated, some folks really like, others do not.
For a newer tandem team it is great as stoker/pilot can coast independently when tired . . . and some more experienced teams like that too.
The choice of gearing is incredible!
With 4 'chainrings' (actually cassette cogs) and 9 or 10 gears in the rear you have a humongous selection!
The front shifting is the best of any tandem we've ridden with 6 tooth jumps between the 4 chainrings: really s-m-o-o-t-h!
The quality of the frame/components are top-notch and service is excellent.
Having said that, we did not like IPS . . . but then it's hard to teach old dogs new trix!
Pedal on TWOgether!
Rudy and Kay/zonatandem