Just completed a one night stay at the Sheraton Malpensa. I booked it via beatthetimer for 70€ and spend one of my SNA to get a diplomatic suite for sure. Upgrade went through 5 days prio to arrival, also your24 request was granted.

The hotel is located directly next to the malpensa express station. During check-in I was asked the normal questions, local welcome gift is a sheraton luggage tag.
First I got suite 3125. Interesting about this suite was the shower which was a whole separate room with four shower heads. But the open bathroom concept next to the entrance is weird.
But the air condition was not working and maintenance was not able to fix it. As summer can be pretty hot in Milan and the room already had 27 degrees I asked for another suite and got 3025 (same as the one of thomas199023 above).
Air condition was working here but this suite has no shower at all. There is only a tiny bathtub in the dark (hard to stand there) with a shower head that cannot be fixed to the wall because of missing slide bar. Thus one has to hold it all the time and take care not to water the whole room. That is just ridiculous, especially because there is part of the bath that could be a shower but the shower head is missing. Moreover a cover at the bathtub was missing, and also cover of one of the lamps was missing.
I complained again and got 2025 which is the one from the hotel's homepage. Same size as the others but nicer layout with separate guest toilet, dining table and sitting area. The bathroom is partly open to the sleeping room.
All in all this suite was nice but had also some issues which were fixed partly by maintenance:

• Two light bulbs did not work - fixed
• Shower door was really hard to open - fixed by removing the plastic under the door
• Guest toilet bounced to the left and right as it is not fixed properly to the wall
• Shower was not flat but had a normal shower tube of approximately 60*90cm. The whole shower was bigger but could not be used unless standing pretty crazy in it.
• Slide bar of the shower head is also bouncing
• Power outlet in the bathroom is broken thus hair dryer could not be used

As an excuse I found a bottle of sparkling wine and fruit platter in my suite in the evening.

Club lounge itself is pretty basic with very limited choice and amount of food and drinks. Nothing is refilled and no service offered. There are two PCs that should have a printer (information still there) but no printer in the lounge at all
Internet in the first suite was decent fast (around 2MB) but in the third not useable at all (Wlan 0.05MB, cable 0.2MB)
The bed was comfortable (simmons mattress) and big.
Another annoying factor was that the hotel is not 100% soundproof so once can hear the airplanes and also the constructions going on in front. Soundproof is possible also at the airport, e.g. Sheraton Frankfurt.
And it seems that the building was never planned as a hotel as the hallways are quite big, long ways, the air condition is much too weak in the whole hotel and elevators are slow. It all looked more like an exhibition area than a hotel.

All in all I would stay there again if I have to spend one night at Malpensa airport or the hotels in the city center are again too high. Malpensa express takes you in 30 minutes to Cadorna and back for 15€ on the same day.
Otherwise I would go for the Westin which has quire nice jr. suites and a good points upgrade options for their presidental suite.