Right then.
Thanks everyone for your input, whatever it was. This is my first thread so its nice to get to meet people, even if this one has escalated into name calling :/
As regards build quality, in my personal opinion, I think sebo is slightly better. Taking into account design and build quality, sebo I definitely think is better. Their brushrools are much easier to get to (much is an understatement). Miele's look more sophisticated but my s7 I thought in some places felt a bit cheap. The grey plastic was very soft and one of the switches on mine broke within 2 hours of me having it.
I know some vacuum retailers (independent ones) have stopped selling Mieles due to a combination of them being difficult to work on and customers returning then. GoVaccum on youtube have said just this. Although, miele to a more diverse canister range.
However, I have found miele bags to be better than sebo ones. Much thicker and heavier duty. You cant go wrong with neither of them really, I just prefer sebo.
These are properly built alternatives to mainstream Chinese built rubbish we are now so used to. Yes there are some better built Chinese made vacuums but on the whole, I think we have gone backwards in quality in not only vacuums but a lot of other household appliances since manufacturing has moved over seas. Anyways, that's another story for another time.