I really do prefer manual height adjustment, generally. I may have a Miele S7, but the spring loaded height adjuster that adjusts to all varying heights correctly is interesting and makes sense to me (as I explained on my last reply here). I don't really go for vacuums with an auto height adjuster like the X4's because, like you said Ollie, it may adjust wrong. I do like the Sebo Essential G or Sebo 370 just because they have manual adjustment. To be honest, I do miss having a vacuum with manual height adjustment just because I like traditional vacuums like that. I may look into one of the Sebos I mentioned.
