Hi,
I own several Logitech products. I love the hardware, but, sadly, software has always been bad, often terribly bad, to the point that, sometimes after getting very badly frustrated, I returned the hardware.

Now, Logi Options+ is unfortunately not an exception. User experience is bad. I am saying this as a fellow designer myself. It looks nice but it is unintuitive, badly communicating with OS, and just plain confusing. I first thought that, it was a buggy first release, but soon realised that it is not the case, it is just badly designed.

Let me give an example:
I have Logi Options installed. It notified that there is Logi Options + and it will give more out of my devices. So far so good, it lures you. Then, I installed Logi Options +.

First, thing, Logi Options is still installed (I am on a Mac by the way), but unusable, it asks me to goto Logi Options +. Why then, they are both still installed? This is even a miner thing.

Then, I goto Logi Options +. First you need to add your devices. I look at the list, both my keyboard and mouse connects on bluetooth, I have the dongles, but I don't use them as I don't my ports to be occupied. So, I click bluetooth, which opens the Mac Os system bluetooth tool. I see my Logitech devices there, and I click them. Nothing happens. I get confused. I close it. I look at Logi options +. I am still in the screen which was asking to add devices. I think, hmmm... nothing added. I click Bluetooth again. Same thing. I repeat this a few times, get frustrated. And want to uninstall Logi Options + immediately: "Oh, yet again a buggy and badly designed Logi software". I can't find the way to uninstall immediately. So, I give it another chance. Same thing happens. And software doesn't give me any feedback or instructions whatsoever. After several attempts, I find out that actually, when you double click the bluetooth devices in the OS system bluetooth tool, they are added to Logi Options + but the Logi Options screen is not updated. So, I need to go back to see them added...

Please, please, study user behaviour properly, study how OS reacts to your software, map a proper user experience journey. Give proper instructions in the UI. Don't just make a pretty looking minimalist UI for minimalism's sake. It is painful, especially it it comes with beautifully designed, well functioning hardware.

Kind regards,

A fellow UX designer.