Yep - I dubbed them Thames Tinfoil after the way one was ripped apart like a KitKat wrapper in the Paddington crash; a crash my mate just happened to witness and even be injured in (he was hit by part of a flying train).
The APT was great; the only reason someone got sea sick was because a) the train's tilt mech's computers needed tweaking and b) the guy was a press dude who'd drank copious amounts of free wine at the press launch the night before. Certainly you'd get less ill on one of those than on a Virmin Voyager over anything other than perfect track.
As per usual in 1900s Britain, we came up with a great design, gave up before it was finished. Guess what - the Italians bought the rights, and then sold us back trains with technology we'd designed. How typical.
The Mk2s (in good nick - ie NOT Virmin Crosscountry) are not bad at all - provided you get ones without those horrid wingback chairs, where if you try to turn your head (especially with big closed back headphones on) you tended to knock yourself out.
InterCitys are OK barring the grossly underpowered "power"(real misnomer) cars - the EWS engines use similar technology and have a far higher startup torque. The IC225s aren't bad either - but the IC125s are cooler, since they've starred in the Young Ones

"Do not lean out of the window - I wander why?" (Actually, the interior of the train in that episode's a Mk2 - look at the window edges and seat style - but the IC125 you see them get on has that lush yellow interior which used to rule! Oh - and the station they get on at is Bristol Temple Meads).
Mk1's are evil. The seats might be OK, but try commuting on one from 1996-2002 - you'll loathe them then. Smelly, dirty, and the bogs never seem to be clean.
Virmin Voyagers are rubbish. All style and no content. They roll like a demented porpoise on anything other than a perfectly level, straight track; the ride back from Bristol to Exeter last week was like a rollercoaster. Oh, and the seats give you arse ache and you feel every bump. And what's with the stupid klaxon noises you always hear on them?
The most comfortable trainride I ever had was on the Swannage railway - real steam, real comfort.