By all indications, your R1 was defective. So I don't see how that applies.
As far as suggesting via third party account that the 722 has "issues"... Can you name one?
Yes it was defective, but it just stopped working correctly,
during a show, so there should always be that fear of others having similar issues.
A DMB taper (I would have to check and see who, as I do not recall off hand) had problems with his over heating and had to send it back for repairs (or replacement, it was last summer so I have lost track). Not to mention lots of people who have their units get so hot (from the hard drive heat) that they almost burn body parts.
I love my R1 and the 722 (I have unlimited access to one) and am no way knocking them down, but new users should be made aware.