This is exactly what our family of 4 (2 adults, 18 and 16 year olds) were needing. We stayed 6 nights and it was perfect (though my wife says another 2 nights would have been better). We used the beachhouse as our hub for day trips. You can make a day trip to Caracol (Mayan ruins) if you leave early enough (we left at 5am) and visit the Rio On Pools, Big Rock Waterfalls and then do a cacao tour at Lamanai Chocolate Company on the way back. It will be a long day, but we looked forward to our private beach on way back (and frozen pizza). A good stopping point for street vendor food would be Uno Gas Station near the Western/Hummingbird Hwy intersection.
We shopped at the Fe We Mart in Hopkins for house food, but if you are looking for more variety and "Walmart" stuff, you can drive 1 hour to Dangriga and stop at Family City Import
There were only three slight dings to our accomadations.
1) The closet safe had its battery die on us while we were there. Thank goodness it was midtrip and not at the end of our trip since we kept our passports locked. Mirko took care of it by providing the override key.
2) It was advertised that a fresh fruit basket and some drinks would be provided upon arrival. Neither were there.
3) Driving instructions from airport called using Hummingbird Hwy. Wish we listened instead to our AVIS agent who had suggested using the Coastal Hwy which shortens the trip by an hour. We took Costal on way back w/o issue.
Even with these hiccups, still rate 5 stars