Just to offer an alternative view, we've owned a home in Pinaret for 10 years and have stayed at all times of the year. Our apartment has wonderful open views, is on a quiet street - almost at the beach which is just 150m away and only 10 minutes walk from the square and a minute from Tolo's. It's leafy but never dark (though I can think that Los Nogales right up near the bypass could have been described that way til they had their trees cut back recently). Roads are more wide avenues and space and none of the hubbub of the town - which I appreciate some people love. There are some cats but they are hardly a nuisance when compared to dog poo in town areas! The dawn chorus is lovely though I can't say I've noticed pigeons .... and mosquitos are what they are; we get bitten very occasionally but I can vouch for the fact that they like all parts of town!
I have seen the odd coach at Villa Concha but I have to dispute the nuisance of this versus the town and bypass where standard buses have been re-routed and are causing chaos. We are here all day every day and I cant remember the last time I saw or heard a coach near our home - and no buses in our area at all.
All in all, it's nice to be out in the quiet leafy suburb with easy access and no noise and the area is becoming very trendy with the addition of sea front bars and restaurants like Sea Bar IS and Casa Vila di Mare, along with the beach bars, the Romantic, Tolo's, El Bistro and Torre Playa.
I personally don't think your son would have any regrets buying here bevgt - we've certainly never regretted it!