We stayed here as a client was paying and it was close to the airport for our business flight the next morning. Rooms were comfortable, good beds, very quiet so got a good night's sleep.
If you want service with a smile, however, this is not the place to come. Swiss customer service can be a bit adrift sometimes and that's true of the Starling hotel.
The hotel restaurant charged 44 chf for six pieces of ravioli pasta as a main course. We complained and an extra plate of calamari was brought for no extra charge - the waiter admitted there were often complaints. It just felt like a total rip-off and was disappointing.
The worst thing was the early morning shuttle. We needed a 0510 bus and there was a bus there but we were refused entry, being told it was for airline staff only - yet it was a Starling branded bus. We then had to wait almost 15 minutes outside for another bus. The staff at the hotel desk really could not have cared less. Having stayed at very cheap hotels at Geneva airport when I'm paying the bill, I know they offer a better service and so I would not come back to the Starling again.

A perfect venue, close to the airport. Relaxing in the pool, jacuzzi, sauna until just before take-off. Hotel let us stay until way past the regular check-out time.

Very good overnight just before a long journey. Staff was friendly and helpful, beds and bathrooms, linen, towels pristine. great finishes

It is a pity with such a big new hotel but staff at the counter do not know how to smile and be friendly with guess (especially one asia staff at the counter was really unfriendly ( I am asia). If you come for travel in Geneva please stay in the ccity, do not come here, it is not convenince.

Room was great, spacious and clean (although one towel did have a bit of a blood stain). Room service was excellent, food and especially the dessert was divine!
Next day at breakfast we however got disappointed. At 39 CHF per person we expect top notch food and this was unfortunately not the case. The cold cuts were dry and discoloured and the cheese sweaty and old looking. When told about the cheese the waitress changed it but still did not see the poor cold cuts quality. I could understand if something like this was overlooked due to a stressful and busy restaurant, but the place only had us and three other couples in it - with 3 (!!) staff standing around!
All in all it was a nice place, but felt a bit pretentious and impersonal in the hugh reception area.
Their wellness area seemed nice too but we only tried the water massage bed which was an experience.