Extremely courteous staff, spanking new premises, convenient parking & unloading area, but charging extra for 'out of office hours' access is a bit mean c.f.competitors.
We noticed the new Big Yellow Self Storage facility as we used the M4 for Heathrow. From initial enquiry to having the removals company deliver our items, the experience did not disappoint. The staff are very pleasant, whilst following the protocol to the letter, the space is superbly organised and brand new, and feels very safe and secure. Only quibble is the lengthy check in process, which is maybe more to do with the very early start for us to meet the removals truck there!