Freshbooks is another one that is quickly going downhill.

In the last couple of years...

They switched all Stripe accounts to their own Freshbooks branded new Stripe account. This meant the last 7 years of my business transactions are now on a "Legacy" Stripe account and archived and all new transaction go through the new Freshbooks branded Stripe account. They are also taking a % of every transaction now.

In addition to this they have increased the monthly price twice claiming new features and the cost for building them. I'm not using any of the new features and I haven't increased my usage (e.g., no more recurring invoices during this time).

They also redesigned (rewrote?) the entire application which requires additional clicks and screens to perform daily functions.

My dream would be for companies to keep their interface / UI the same and incorporate new features into that design.

In closing, it doesn't make sense to me that organizations like Bending Spoon would buy a much loved service and change anything. It's profitable, just go through the feature request list and incrementally improve it, don't change the whole application, billing structure, and UI. People used Harvest for all of the reasons you removed. Or, even better, follow the Basecamp model, it's worked very well for DHH.