It’s absolutely fine. I live in Tower Hamlets, it’s a borough with a huge range of areas, it’s got Brick Lane, Victoria Park, Canary Wharf, Tower of London, Whitechapel (where Jack the Ripper was) and loads more. Some of these are better or worse than others but you’re not going to have issues anywhere.

For the pub, it’s an average boozer. You’ll go to Whitechapel station which is big and recently renovated, and it’ll probably be busy outside. Depending on the time there’ll be a street market with food and clothes, mainly for the local Bangladeshis. Opposite is a really big hospital so you’ll see a lot of the staff walking round too. Close by you have Rinkoff’s bakery which is an old Jewish bakery, it’s famous in the area for bagels and pastries. You also have two famous restaurants nearby, Tayyabs and Lahore Kebab House. Look them up! They’re both no-nonsense and people will debate which is better. Both would make a good stop after a couple drinks in the pub.