I consider myself pretty adept at UX and have no real issues with Trello and it's been quick to learn and use for our technical and non technical staff alike. It may have slight issues but nothing in the scale your comment suggests.

Perhaps you could elaborate on some of your issues with the UX/UI, instead of trolling everyone who disagrees with you.

Sorry, bad morning, but you do realize that you just did exactly what you scolded me for doing, right?