I was there last summer, it was quite nice, not too many tourists, especially in the inner city. I was staying at a hotel 10 minutes outside of Alicante. The people are very nice, the only problem was that they couldn't really speak English, they knew enough for you to be able to shop and shit but that's where it stops. You definitely should go, you won't regret it
Edit: Those pictures are definitely not Alicante.