Terrible. Tried to open a business account. After providing ample business documents they required a mass of personal financial information. This was a business account application not a personal one.
I tried asking what documents were required ie; by government reference number which they would never provide. The kept asking for vague tax information documents without giving the official name. They asked for an "original" pdf document even though I supplied it.
In the end I told them to tell me exactly what document they wanted by name or document reference or close my application. Within minutes the application was closed. Now they claim they'll retain all my financial documents for 6 years.
AVOID, don't bother. Never known such a poor process from something pretending to be a "financial institution". You have less hassle with a real bank.