Well, I'm disappointed with Sennheiser TBH. Volume control failing on a £110 headset? What the hell, what is one paying for then? HD555's, a £30-£40 price increase, yet the issue where the plastic still cracks above the ear cup, is not addressed. It won't be now obviously, with the HD558's being the replacement, but have they improved the plastics?
Sennheiser are charging a lot for products that have some issues, which should not happen, given what they cost.
HD650's are about £100 more now, but thankfully they are well built. Would be a right **** take to up the price by £100 if there were some issue like the HD555's, PC350's, just as an example.