Absolutely no communication
I went for a flat viewing. It was conducted by a lovely, knowledgable woman. Afterwards, I had some questions I'd like answered and left an email. I got a call the next day promising I'd get my answers. 3 weeks later, nothing. I've left an email and 2 voice messages. I've also discovered the flat is now up for rent, which begs the question has it actually been sold, and the new owners are renting. In that case, why is the flat still up for sale, and why did no one have the decency to let me know.
They're lovely at the beginning of the process, but once you actually want to get involved in the process, absolutely nothing from them.
EDIT: After contacting customer support, I finally got an answer, that was apologetic.