Serrano is a nice place to live for sure. It's clean, modern, and best of all you get the condo lifestyle without the commitment. The building features a gym, party room and theater room and units have a dishwasher, washer and dryer. If you don't think you'll be using these amenities, I would recommend maybe looking elsewhere because this building is not cheap; one bedrooms less than 600sq feet start at $1,200 a month plus hydro.
The location is great for drivers because you are close to the 427, Gardiner and the airport. I am not a driver and hated being in between subway stations; it was a 11-15 mins walk to either Kipling or Islington and giving people TTC direction to get here was next to impossible.
During my two year stay I found the staff to be nice.... but not always competent. Moving in and out is a bit of a circus act; elevators could only be booked for 2 hours and the loading dock was always blocked by giant heavy metal garbage crates.