I'm not an owner of this model, but did ride one at the Terratrike dealer bike shop where I worked last summer and expect to again this summer (Amlings in Niles, IL), so since no one else has commented on this model yet I will. (If that's a conflict of interest, please advise and I'll delete the review.)

The one I rode had quick-disconnect couplers that allowed it to be partially disassembled, which is a really good option to consider unless you have another easy way to transport a 10' long bike. (When fully-assembled, we also found it easy to simply fasten to the roof rack of a short wheel base full-size van.)

The IPS feature is great for when one of the two riders can't peddle all the time. That option is not available yet for the Terratrike Rover 8 with tandem attachment that my wife and I own and ride regularly, and she misses it after a few miles due to some knee problems. Apart from that, however, the Rover 8 with tandem attachment seems equally enjoyable... Read more