Apartment is very easy to find literally one block from the sea front. I'd advise flagging your own yellow cab (using the meter) from the airport - this only costs 40-50reias, rather than paying a company at the airport 100reias.

The door men haven't got very good English so it would be in your best interest/polite to learn the basics such as, hello, how are you etc etc. They aren't the chattiest but still it's polite to be friendly. The penthouse is on the 12th floor so if you don't like lifts then get to the gym in preparation for the stairs ;).
Anyway Bob is friendly and helpful. The apartment is very safe and the main door into the penthouse is passworded for added security.
The room was clean and liveable. We stayed for 6 nights in the apartment which was plenty. In a previous review 3 weeks ago it was said the hob advertised was broken. It wasn't present on our arrival either until we asked for a replacement. The hob we got was very old and not the safest - Bob was apologetic about this and said he hadn't had chance to get a new one yet. The towel rail in the bathroom was also still broken. Also I'd like to mention this room is not got air con, if it does it's broken and needs to either be replaced or re-gases as the room was boiling with it on! Thankfully it's rained cooling the room temperature down for 2 days. The road noise is loud throughout the night so it's not a peaceful getAway.
On the plus side the roof terrace is a nice space, the bed is comfy, the fridge was very clean, as was the microwave.
Besides those few grumbles I would still go back and stay at bobs place as he was very helpful and it's in a good location.