This hotel was booked for about 20 people in my company based on what we saw on the web site...to quote "Welcome to the München-Dornach, a 4 star hotel located directly at the new fairgrounds." Now if you call 3.5km from the fairgrounds "directly", then you will also appreciate what they mean by four stars. Buses and taxis had to be used.
The hotel is located in a business park, with no nearby shops. Riem S Bahn is AT LEAST 10 mins walk away.The hotel feels like a concrete box, with carpeting being carpet tiles, no pictures on the walls etc.
We checked in on Sunday night - the only thing we could get to eat was a tired looking buffet for Euro18...at 9pm most of the food was gone and the staff looked like they were ready to go home.Disgraceful for a so-called 4 start hotel.
Breakfasts at Euro 20 were barely passable. Had a tepid shower on Tuesday morning when there was not enough hot water. My wife ordered room service, with a choice of three items!!!
The final insult was being charged Euro 32 for three telephone calls we had not made.

My company will never use this Group again.

Very clean hotel, nice staff and rooms are nice and clean, no good if you are on holiday though and want to go in and out of munich as it aint close !

Also costs around 55 euros in a cab from the airport

This hotel is a standard business orientated affair, situated on the S2 S-Bahn line about 20minutes out of Munich. The hotel is about 10 minutes walk from Riem station.

I somehow got a disabled room, but it was all fine, functional and clean. The staff were helpful and a luggage room was available.

NH hotels are consistently known for their stylishness and reasonable price. The NH München Dornach has a stylish flair, but it is more sparse and maybe a bit more cheap feeling than other NH hotels we have stayed in. It seemed more like a generic business hotel.

The location is pretty far out of the center of town in the middle of a newly developed business center. That makes this a tough place for tourists. The train platform is about a four minute walk from the hotel, and it was about 15-20 minutes by train into the city center.

As my wife and I planned a very last minute excursion for Oktoberfest, the in-town hotel options were simply too expensive. That is the beauty of the NH Dornach - it was downright cheap in comparison (about 1/3 the price of other, less respectable hotels). So on the basis of quaility for value, this place was off the chart. On a standalone basis, I might not have been all that excited about it.

Our room was fairly small. The furniture felt a bit like it had been outfitted at Ikea - not bad, just not what I would describe as nice. Or overly comfortable. The door only did a moderate job of blocking out hallway noise. As we were close to the elevator, this was a touch annoying.

One plus is the availability of services and amenities. Both a restaurant and bar are available, as well as a small fitness center. There is plenty of parking on site. They have a few free spots in front, but I never saw one open during our two-night stay. The underground parking is EUR 8 a night. A reasonable price for Munich hotels based on my research.

The hotel hits the key elements - new, clean and cheap - so it is a decent option if you are in town for business. It just might not be the perfect place for tourists unwilling to sacrifice convenience to save a few Euro. If it were not for the great relative value, I probably would have only granted 3 out of 5.