LEVC is OK for a spanish airfield but only just ! the GA parking is on the other side of the field from the terminal & flight planning etc and you will have a long wait to get a bus to the terminal, personaly I would only use it as a last resort.
En-route good stops in France are Tours & Perpignan , cheap to land and good services on hand.
Spain is now a pleasure to fly in with the VFR system by and large better sorted than the UK but a flight plan is needed for each flight.
All the airport staff that I have delt with have been very helpfull (unlike the security jobsworths in the UK) if lacking a little urgency the problem with LEVC is only because of the bus to the terminal.
One last tip , get a BP fuel card it will speed things no end and you don't have to carry a lot of cash.