Well I think I’ll chip in here as I’m pretty certain that the On-One with the disc mount facing issue was mine. It’s a geared 853 version. The problem with the mount seemed to be that as the upper mounting hole on the mount was closer to the frame and had a smaller surface area of metal around it, the facing tool cut across the mount/seatstay weld (it was clear on the lower portion of the mount); the reason given was that it was down to the way On-One fitted their mounts rather than a fault with this particular bike. As it turned out the problem that I was having aligning my caliper wasn’t down to facing at all but to the fact that there was a small amount of weld splatter on the face of the mount itself meaning that the adapter wasn’t lying flat; this was spotted and resolved by the Bike City team and the brake has been fine since. I certainly wouldn’t worry about using them again and also appreciate the free, knowledgable advice that they’re happy to give out (like glancing over the bike and helping resolve a chainsuck issue).
As for the Inbred, well I love mine but my finances are such that I’m very much at the budget end of the market. The RRP for the 853 Inbred (one of the 100 anniversary ones) was around £250 (and I got mine for less off ebay as an unbuilt second user one). I’m sure that there are better frames out there, like the Rocky Mountain Blizzard, another 853 frame that comes all faced and chased but with a RRP for this years model of £779! IMHO I think you get rather more than you pay for with the On-One and rather less than you pay for with the Rocky Mountain (even if it is a better frame). With all that said I doubt that there’s such a thing as a perfect frame and we all have (and are entitled to have) options about bikes. It seems a little rich to criticise bike enthusiasts for having opinions on bike just because they work in a bike shop when some of the bike enthusiasts on here at right at the far end of the ‘opinionated’ scale (I’ve been accussed of polishing a turd for sticking a Thomson post in my old DN6 Inbred).
Just to stir the pot a little more though, I’ll mention a converstation I had with an enthusiastic yoof in a well known bike shop in Taunton some years ago, I don’t remember the exact words but the essence was that they didn’t stock Cannondale (I think that they were supposed to be rubbish) on the grounds that they were so thin walled that it you peddled too hard you could twist the frame.