I've used for dropbox for the last 13+ years, was an early customer, and absolutely love the core product.

However, in the last handful of years, I've been incredibly disappointed in the stagnation of their products.

Dropbox was the first 'virtual desktop' I created that allowed me to hop into new companies and get going in a seamless way. Beyond just dotfiles, I was able to keep applications too, it was so easy to sync and get everything setup at a new company.

When repl.it came out, I wondered why Dropbox hadn't done that first. There's all sorts of room for innovation here - being able to install the right binaries, perfectly configuring a cloud command line setup, syncing configs, etc.

Photos - I have the majority of phots from my adult life stored on dropbox. But the searching is crap compared to google. It's not easy to share or make albums. Dropbox could have been a mini-social media site, a way to share photos, collages, albums easily with friends - but it has half the features of google photos!

Collaborative Editing - They probably could have done something here too, but I never saw a compelling attempt.

Dropbox is still a great product for file syncing, but I fear that they will slowly lose relevance if they don't get another hit product.