This ISN'T for sure the best apt to stay in Amsterdam.
This IS the BEST PLACE! Period!!
First of all, the communication with the host is superb: even if we actually didn't meet Caroline (her husband handed us the keys and showed the apartment) she was always ready to answer our requests of informations/etc. Just like a live "Siri" (iphone ref!) always ready for your needs! :D
Second you're greeted with a beautiful, cozy and "quite big little aptmt"! There's just EVERYTHING you need for a nice and pleasant stay. From the coffee machine (with lots of free coffee to use!), boilling water kettle (with 1000 tea bags included!!) microwave, littlebut totally usable kitchen with all the utensils, cups, ... everything, ok?! And much more: you will find fresh fruits, chocolate sweets, candies, sodas and beer in the fridge.
Even the bathroom was furnished with everything you can desire from shampoo to toothpaste!
Those are people who take care 1000% of their customers.

Last but not least, what in my own opinion is the HIGHLIGHT of the place is the LOCATION.
Not far from the city centre but still not in the centre. Away from the crowds, in a nice and chill family-neighborhood. Full of nice little place to have some food with the tipicall "family atmosphere" (the little french organic diner near the supermarket is a lovely place to start your day!), craftsman / design shops, and much more.
On my next visit I will definitely skip the city centre (too crowded and "toruisty" to me) and explore (and live!) more the urban area around Bellavista apt.

Can't wait to be back!!

Thaks Caroline, see you soon!