Me and my friend stayed at Ellie's place for 3 nights. The apartment is conveniently located above a huge mall. It's a 15 min walk from China Ferry Terminal (we came from Macau). Also, the Kowloon metro station is under the building complex, so getting to-from airport with Airport Express takes only 20 minutes.
We actually reached very late coz of a ferry cancellation, but Ellie was very accommodating, and waited for us in the lobby till 11pm.
The apartment itself is just as advertised. We had a great time staying there.