IPv6 test set as operations tool?

[Brian Tate]

- Has anyone found useful a handheld Ethernet test set (e.g. Exfo AXS-850 or
similar) with IPv6 testing capabilities?
- Are they worth the cost for operational troubleshooting, or are other
tools better? 

I am thinking of buying one...
(Off-list replies are fine--this might be a better topic for a forum, rather
than this list.)

Thanks, Brian (an IPv6 Rookie)