Hi Spainbound! That hotel is ....let me see.... about five hundred metres from where I am sitting typing this!
It's a really lovely hotel, beautifully laid out with very nice gardens etc. Some friends of ours from England stayed there a month or two back and we met them in the bar one night and had a look round. You'll find it very comfortable and pleasant, I'm sure.
You are a little way out of Estepona, between the town and San Pedro de Alcantara in the opposite direction towards Marbella. There is a bus stop close to the hotel, although the schedule the buses keep is a little erratic, but they should run every half hour or so! If we go into Estepona for a night out we get the bus in and a cab back after midnight is only about 8 or 9 Euros. A similar price from San Pedro too.
A hire car is worth thinking about, as it gives you a bit more flexibility. Hopefully the weather will have improved in early April, as it has been raining cats and dogs at the moment and so we may be getting it all out of the way for your arrival! There have already been people on the beach in recent weeks. You can be lucky at this time of the year and need sun lotion or an umbrella. A few weeks ago for example, Mrs Anchovy was on our terrace ina bikini doing the ironing. The next day we were huddled by a log fire wondering if we were in the same country!
As regards restaurants, you are coming just on or after Easter, so all the beach bars should be open and the restaurants buzzing. It's quite busy already with lots of golfers (damp ones at the moment :p ) around and keeping the restauranteurs happy. Dress code is usually pretty relaxed, but post a message on the food and drink page and I'll try and put a few names and places about for you to have a look at?