Miro has an interesting learning curve (at least for me). I absolutely hated it for the first couple dozen times I used it.

Then, there was one meeting where it was particularly effective in running a “sticky note” exercise and my opinion on it flipped that day from around -7 to +3 [on a -10 to +10 scale]. It’s grown slightly on me since then as well; I might be a +5 on it right now.