We have used the Meerparel two times now for a few weeks holiday in North of Holland. The Meerparel is well maintained and the houses are quite spacious for a family of 4 to 6. The appartments have a fully equipped kitchen. Uitgeest is centrally located about half an hour drive north of Amsterdam. If you stay here you do need access to transport to enjoy most of the area.
The appartment comes with a half-day rental for a motorboat for free which you can use to explore the surroundings (it is about 1 - 1 1/2 hours sailing to Zaanse Schans).
As recommendation would take an appartment on the first floor with a lake-side view which will allow you to enjoy all the watersport activities and the sunsets accross the lake.