Stayed here in January on a business/leisure trip for 3 nights. We took a taxi from the Airport which was 57 euros, and was a 25 minute trip at a busy time.
If you arrive by No. 53 Metro, turn left out of the Gastenplas Metro Station (last stop on the line) and follow the cycleway/footpath past the rear of the Campenile Hotel, then follow the footpath up the slope, and follow the footpath all the way to the road junction where the hotel sits (you will have passed a campsite on your right and the Prins Willem horse centre, also on your right).
The hotel is a decent 3 star, probably about Premier Inn standard, with better public areas. The rooms are a good size. Ours room was clean. It had two single beds, desk, wardrobe, TV and table + two chairs. Reasonable bathroom with shower gell and tissues, but no hairdryer (you can borrow from Reception for a deposit).
The Lighthouse Bar and Flavours restaurant are pleasant public spaces, and both serve food. We ate dinner in each and the food was good - 15 to 20 euro for mains, but also sandwiches and pasta, salads from 6 to 11 euros. Breakfast was good too, with fruit salad, cereals, pastries, cold meat, cheese and scrambled eggs and bacon (but no baked beans!)...Drinks prices were ok for a hotel with 3 to 4 euros for a glass of wine.
Hotel staff were polite efficient and helpful.
It was a fairly quiet hotel and we slept well.
In good weather there is a riverside terrace to enjoy the location.
The hotel is located on the outskirts of Amsterdam, but you can catch a Metro (53) into Central Amsterdam. We got a 24 hour ticket for 7 euros. The Metro station is about 15 minutes walk from the hotel. It's a pleasant walk in the daytime, but not one I would want do alone late on a winter night (taxi from the Centre of town a much more expensive, but better bet). We had no problems with the Metro, which is an efficient service. Get off at Waterlooplein and you avoid the crowds at the Central Station.

We thought the hotel was good value. It would be particularly suitable if you were arriving by car as there is a large free car park, and you could avoid the cost of parking in Central Amsterdam.You are also well placed for some car trips to the coast or villages etc.

If you intend to spend most of your days in Central Amsterdam, it may better to consider a more central hotel and pay more, especially if you plan being out late a lot.
As for the hotel itself, it was good value, and we would have no problem in staying there again.