This is a fantastic property, that I would highly recommend. Arriving at the tune (North Acton) it's about a 5 minute walk to the block. Only minor issue, is that there are no signs to stay it's Cityspace, which would be useful, but as it's new I suspect they'll get round to this.
I was shown around the apartment by the Cityspace person, pointing out where everything was and worked. My apartment was on the 31st floor so a great view out over London. Everything you want for a stay is there. Lovely decor, loads of space and cupboards and drawers. I can't fault it at all.
Not surprising that when I went to re-book for next week, it's fully booked. I hope I manage to find availability to come back.
One thing to note is that there isn't much immediately around the area, apart from a Tesco Express and Sainsburys Local. No restaurants or pubs that I found, so best do your entertainment away before returning home. North Acton is on the Central line, so you can be in Bond Street in about 25 minutes and Shepherds Bush (Westfield etc) is only about 10 minutes away as well.
I would say be sure to try it, but that might make it harder for me to get booked again.