Just back after a week there for first time and really liked it. Have been to Lanzarote and Tenerife too a number of times. Fuerteventura is much less developed than other islands but too me thats a good thing. Though we spend a week there we had a car and toured whole island staying in 3 different places. The weather was absolutely fantastic for us with temperatures every day in 70's, it was proper beach weather, though a bit cooler at night and we didn't get too much wind, maybe we were lucky!
We are couple in our 50's and I would say if you want lively and night life the best place is Corralejo, which is main town. We didn't stay there just visited and there are Irish and English visitors there, thought there and elsewhere it is predominantely German visitors.
We stayed in south of island in Morro Jable which has fantastic stretches of white beach, this is a small town with a number of restaurants and bars right on seafront. There are plenty of hotels in this area, all the major chain ones, although they all seem to do only "all inclusive" which i hate so we stayed in a small self catering place. We also stayed in a place called Las Playitas, beaches here are a bit darker. Last place we stayed in was on west coast, a really small place called El Cotillo which again has fantastic white beaches and lagoons on one side and a surfing beach on other side of town. There is a lovely little harbour area with a few restaurants and bars, plenty for us and if going back there again this would be our favourite spot.
My only complaint would be I didn't think the restaurants were all that good, basic, nothing exceptional. Hope that helps.
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