Oliver's apartment was pretty much as described; the living area is very spacious and the kitchen well stocked with all the crockery and utensils that you could need. Despite some noise from the restaurant opposite, there was no trouble sleeping in the apartment, but it is something to be aware of if you typically want to go to bed early.
Barcelona has some fantastic sights to offer and although Gaudi features top of the list - and rightly so - there are plenty of other things to see and do. A great destination!