We visited the beach at Costa Adeje last year, and will not be in a hurry to return. We were continually hassled by people trying to sell drinks, fruit and even massages! The cost of the sun-beds was higher than than any other local beach, as was the parking in the multi-story car-park. (I realise that Pabladoluvit wants to go by bus or taxi so wouldn't have this problem) The restaurants and shops were also, in my opinion, expensive, certainly in comparison to LG and Play la Arena where we usually go. I think it aims at the more upmarket holiday-maker. (Obviously we don't fall into that category!)
If you go to the Information office in Playa la Arena or Playa San Juan, they are very helpful in getting info such as bus times, etc. There may be an information office in LG but can't think where at the moment. Oh, just thought - is it by the bus stop near Tipsy Terrace?