I bought a whole kitchen of top end Miele appliances. I'd always heard about it's good service and build quality. However, I've learnt that's not the case.
They don't respond to emails and, when they do, they only do so after you print the emails and send them to them by registered post l!!
The latest problem is with an oven. After 3 years of normal use the door lock failed and jammed the door. Technician said he thought it was caused by heat exposure (it's an oven) and replaced it with an upgraded part as they don't fit the old one anymore. Charged over £500 for this (over 25 % of the cost of the oven). When customer service finally bothered to respond, they explained, in summary, Miele can't guarantee it's products don't come with faults, it's usual for parts like this to fail so soon and, if it doesn't break in the first few months, the parts in the product must have been fine. The general attitude is just accept we're right and everything we sell is perfect.
Prior to this, the induction hob failed just after a year of use. Whilst Miele replaced it, this was through gritted teeth as it was over a year old.
I want to flag this to everyone so you don't fall for the sales pitch. The products may be nice, but the build quality has gone downhill (but the price keeps going up) and the customer service is horrendous. I won't buy anything from them again and will actively warn people about this. If you do buy from Miele, just get ready to key paying for expensive repairs until you get fed up and replace it. Also, if you get customer service to respond (but don't get your hopes up as they prefer to ignore emails) just be prepared for blunt responses that are designed to get rid of you.
Just to add, I get that an oven won't last forever but at this price point and with it's marketing blurb it has to last for more than 3 years of use without breaking.