In my experience, Twitter still works well with the following caveats:
1.Only use the "following" tab for general scrolling. Since this makes it difficult to see older tweets of people you follow:
2.Every once in a while, click on those who you consider your most important follows and scroll through a day or two's worth of tweets, and
3.Perform a search for companies in your portfolio or watchlist to find out what people are saying.
While the last search will turn up a lot of junk, it is relatively easy to scroll past that and find any tweets that may be of interest.