Kane Villas was wonderful. My family of four (2 adults and 2 children) stayed there for 5 nights in April. The house is even nicer than the photos. We loved the wrap around deck, with our own fireplace and grill, and a fun hammock. One sign of a good rental property to me is having good utensils in the kitchen, especially good knives - and Kane Villas has these.
The pool is only steps from the house and had some inflatable tires and pool noodles, which the kids loved. We played croquet a couple of days, which was fun.
There is so much to do nearby. We went to ATM cave one day (Catherine from Kane Villas recommended we use River Rats, and their guide Gonzo was so knowledgeable). We used River Rats to do a trip to Caracol another day. We also spent one morning ziplining and another swimming at Big Rock waterfall.
If you've got a rental car it's pretty easy to get around. The road up from the main highway has recently been paved and only turns to a dirt road three miles from the house.
Catherine recommended we shop at a grocery store in Belmopan on our way to Kane Villas, which we did. We bought most of what we needed for our five days, and then supplemented with fresh fruit and veggies from road side stalls and from the farmers' market in San Ignacio on Saturday (which I'd recommend).
All in all a wonderful stay. I would highly recommend.