As for ebay feedback scores,if his score is 100% good then you can rest assured he has had zero issues or complaints from customers after 32738 sales.
Mart
Not necessarily. All it means is that no-one has posted negative feedback. The guy may not have sold many/any of these
or those which have been sold have so far held together
or he's had some complaints but dealt with them properly
or the purchasers haven't bothered to return faulty items
or they've been reluctant to post negative feedback
or etc etc. We don't know.
If Bluebird had such an horrendous experience with one of these then I wouldn't recommend it or buy one myself, even from a respectable supplier. Finding out stuff like that is what forums are for. John is a friend of mine and knows what he's doing and what he's talking about; that's good enough for me.
Still - as someone used to say, suit yourself. I'm still wondering what "Forward burst current = No" means
DM