Generally, I agree with the ease of use,navigation,and functionality of the TOTL arrangers.There are some,however, that want to delay obsolescence with added software enhancements. One can say that the software was not up to par with the arrangers, and they are trying to catch up, but some of these features have been added to vA2 eg,that only the most expensive keyboards can match. This is at a cost of $400 instead of $4000. Some would think this difference is worth a little quirkiness. Dan is a prime example of providing countless enhancements for free.

The other is from a physical standpoint of being vastly lighter and a small footprint. So, I think both markets are viable.

Bernie