The apartment is nice, bright, spacious, comfy and well equipped. There's really everything you might need on holiday.
No problem with moving check-in and out time to adjust to flight time. 4th floor, beachfront, fantastic view. There's an elevator.
The location is perfect if you're interested in the calmer, family oriented side of Benidorm with a beautiful and not overcrowded beach. Around 2,5 km walk to the lively center.
If you want party town, I'd suggest something closer to Levante beach. There are plenty of great bars and restaurants around Poniente as well though, so no need to go far away.
Downsides:
-could be a bit cleaner, the towels were damp on our arrival so we washed them (washing machine available, so not a big deal)
-local housekeeper does not speak a word of English, only Spanish, but seems nice and friendly
-tap was leaking a bit
-there's some electricity problem, when the AC, oven and washing machine were on at the same time, circuit breakers were cutting electricity
-Internet cable was cut. Even though we reported this to the owner and housekeeper a few hours after check-in, the cable was not replaced for the whole stay of 9 days :/ so no Internet on site, had to use mobile phones with roaming tariff
All in all I would gladly stay there again.