Hotel Orlando was very much what I expected. A clean bed to sleep in, a place to put my things, a door that locked, a private bathroom with a shower (don't count on that everywhere in London!), and breakfast in the morning. It's not a long walk to Hammersmith Station, where you can get multiple lines, including the Piccadilly line to Heathrow airport, which makes it easy to get around. I didn't have to make many changes on the Underground to get to the tourist spots I wanted to visit.
Not everything in the room was immaculate (e.g. pieces of carpet ripped up), but I've stayed in far worse for similar prices. TV service was good, free Wi-Fi worked fairly well, though if Wi-Fi is absolutely critical to you I would suggest signing up for BT's Wi-Fi or something similar, just in case, because the hotel's seemed to go down occasionally.
Hotel staff are quiet but friendly and do take care of you. They showed concern that I might have had a cold night when I didn't notice the portable heater outside my room, which I thought was kind of them.
Breakfast is simple but filling. I had the English breakfast every day and was quite happy with it. How can you go wrong with an egg, beans, a selection of meats, toast, and coffee? It was nice to have something hot and filling before heading out for the day.
The location felt safe for a solo female traveller. Neighbourhood seemed mostly residential and there was a nice park nearby. Granted, I didn't stay out past dusk, so I can't say what it's like at night. It seemed quiet from what I could hear. The building itself was also very quiet for the most part. I didn't notice my neighbours much, though you can hear plumbing noises (as in most places). On my last night, a group arrived and was up talking loudly and playing music loudly at 3 a.m., which did wake me up, so I expect the walls are a bit thin. A pair of earplugs solved everything.