They are very educational and not just one big sales pitch. https://fasterfreedom.com/fasterhouse-buyers-club/South Side Investment club is another popular one. 

Pipe bursting is more popular out here than pipe lining. 

In my opinion, it's very subjective as it's really up to an individual's immediate and future goals, their risk tolerance, their experience and their resources....neighborhoods are also subjective---I personally like areas where I can get SFRs for less than 60k and duplexes for <80k and that's going to generally be northside/northwest Milwaukee and south side Milwaukee like 53204, 53215 or Clarke's Square, Lincoln Village.....but pricier areas such as Bay View, Cudahy, South Milwaukee are extremely popular as well....also, where you start isn't always where you finish--many people start on the northside because you can get 4 properties for 100k vs 1 property for 100k and then they move in to better, more passive areas.

It's probably the best starter strategy IF you know what you're getting into and are prepared to handle issues that arise. 

Cleveland is the one I am most familiar with and it's also very popular with investors across the USA so I figured you'd get some value out of reading The Ultimate Guide to Grading Cleveland Neighborhoods.

From what I have read it seems like BRRRR is a popular investment strategy and if anyone has some insight on it I would love to hear more about it.

It's in a good part of town, it is right next door to one of the most popular outdoor brewery/coffee shop spots in town.

But popular booms throughout the 60's, and 70's, and even the 80's saw a whole ton of ranches thrown up to accommodate small families.

Definitely going to Joe Fairless run meetup, because that seems to be the popular one.

That’s a scenario I would like to be in for my retirement, for example.However, all the “regular” issues arise.