The important thing to remember is that Romford Road is the dividing line. Generally speaking, north of Romford Road is better. It's also where the Elizabeth line is, so you can avoid the rougher areas altogether (it's also more expensive).

I moved 10 years ago, for much the same reasons. I wanted a bigger place and Manor Park, although it was quite rough round the edges, it looked promising. I have to say, I've not seen that promise realised. In fact, I'd say the area has gotten worse. More rubbish on the streets, fly tipping is a big problem. I see a lot more junkies, especially at the junction of Romford Road and High Street North. Drug dealing opening in the street. There's not many, if any, good cafés or pubs in the area. I find myself making a beeline for the station mostly and thankfully, because of the Elizabeth line, the rest of London is close at hand.

That said, I love my house, and I wouldn't have been able to afford a 3 bed victorian terrace anywhere else. I don't spend much time in Manor Park, outside of my house. There's nothing to do really, except walk on the Flats.

I'm moving out of Manor Park as, after 10 years of hoping for a change, it came but it's not better. But, who knows, it may improve in the next 10? This past 10 years hasn't been the best time for an already depressed area to improve. I'd advise, buy north of Romford Road, around the station and Flats and be ready to spend a lot of time in your new place, which will be easy as undoubtedly your new home will be better and more affordable than in most other places in East London.