I know this hotel is a forum favourite - I stayed here for a night recently en route from the Netherlands to my UK home in the West Country. I liked the hotel a lot. So friendly and well-priced.
I had a really nice-sized single room up on the fourth floor, with a great view across the rooftops and even to the London Eye. And yes, there’s a lift (elevator).
There’s no air conditioning and the room was VERY hot when I first walked in, but there are proper opening windows in both the bedroom and bathroom so I managed to get it a bit cooler.
I’d booked on Booking Dot Com so my price included continental breakfast (if you book direct with the hotel you get a cooked breakfast). I felt the breakfast was perfectly acceptable - a range of cereals and yogurt, toast and jam, coffee, fruit. Nice breakfast room, too.
The staff were very happy to hold my luggage too.
I do just want to add: I know London really well. I lived there for quite a while, and I visit often. I have only recently moved to a part of the UK that is served by trains from Paddington station, and this was my first time staying in the Paddington area (I had an early train the next morning.)
I really disliked it. It felt a bit squalid and tatty, and the choice of restaurants was poor compared to other areas where I often stay (eg Bloomsbury, South Bank, South Kensington/Earls Court). There were a lot of American tourists around, possibly still seduced by the Heathrow Express into staying there. And I just wanted to say to all of them: please don’t judge London based on your first experience of Paddington.