The hotel is directly connected to LHR T4 via a long covered walkway. If you land at another terminal, just take the free inter-terminal train.
Check in was quick and we were upgraded to an Executive room as part of the Hilton Gold card benefits. The check in clerk also provided the wi-fi login details without me having to ask.
The room was modern and comfortable. The bathroom had a walk-in shower which was much better than a small glass cubicle. There was no noise from aircraft within the room or the hotel.
The hotel is a perfect size with five floors of rooms surrounding a large central atrium. So not far to walk to the room, unlike the Hilton London Gatwick.
The Executive Lounge is on the ground floor by the entrance. Access is by room key. The lounge was comfortable and provides a hot breakfast.
There is a also a swimming pool for use by all hotel guests.
I’d recommend this Hilton to anyone who needs to stay at London Heathrow