These are expensive items. Given the issues with the UB , is the HB a better choice or should I wait for the UB issues to be sorted?

The Go4 app on my hb CS unit works great - you will need a sunhood though.  I don’t honestly know if I’m any better off with the CS unit  than my iPad mini 4 to be honest - which certainly weighs a lot less. And I get zebras in Litchi on the mini which I don’t get on the CS unit