LHR-Bilbao. Seats allocated at check-in. Inbound aircraft late and very late gate allocation in terminal 3 which was busy. Arrived at gate to find aircraft just on stand however boarding commenced very quickly. First impressions of aircraft extremely poor. Over 25 aisle armrests broken and removed with temporary tape visible and the carpet was virtually non existent with chewing gum marks all over the place. Toilets had not been cleaned or restocked with paperware and one toilet at the rear had temporary repairs. A very poor impression and even though this is a low cost carrier the fares are not low on this route due to lack of competition. It is also in codeshare with Iberia and presents a poor image of this company too. Service was efficient and friendly to those that wanted to purchase items. Little information with regard to delay of inbound aircraft and announcements unclear and with little confidence in speaking English. Sadly the poor aircraft appearance detracted from a very average experience.