We went on Friday. It probably took us 2 hours to walk around everything and another hour after lunch to revisit the stands we'd found particularly interesting first time around. It wasn't crowded, which was what we'd hoped would be the case after our decision to go on the weekday when there wouldn't be families with kids around.
SPOILER ALERT
The stands were what we'd expected with a lot of bike retailers and a lot selling accessories and clothing. The bike price range was good. Although it seemed a number of stands offered show discount prices, it didn't entice me to buy - though to be fair, there wasn't anything we really needed and we had mainly gone because we'd never been and wondered what it was like. There were a few 'sit on' type stands - race your mates over 250m, get measured for a bike, try out saddle designs (think that last one might have been Selle: I'd just had my photo taken with Chris Boardman and was fiddling with the camera!). There were the usual associated stalls - British Cycling, CTC, solicitors and insurers. There was a bike try-out circuit which included a loop outdoors.
Driving home after and discussing what we thought, the most interesting things we came across were a small stand-up convex mirror that strapped to your sleeve, a high-vis jacket with built-in lights, various retro-styled bikes, the cycles for people with disabilities and some (not as many as I'd expected) bike security products. We enjoyed the displays by the bmx / stunt riders and some of the jumps and tricks they did over the huge earth ramps were stuff I'd only in previously seen on TV. And throughout the visit we kept our energy levels up thanks to a number of stalls offering chopped-up samples of various energy bars in a myriad of flavours.
Probably won't go again, and with parking at £10, had the tickets been nearer £20 we wouldn't have gone in the first place but we're glad we went for the experience.
Inevitable freebies we came away with? A water bottle, some compressed towel thingies, some energy bars on Sept 2014 best-before date (must get eating them then!), a lanyard, a pen (which didn't work at the crucial time, but Mr Boardman's did), a key fob thing with a loop of tyre rubber, stickers... and a bunch of catalogues to thumb through.