@marcfrick2112
I am using Cocolino on my A2000 with a mouse including a USB to PS/2 adapter. For example I'm using a logitech 831116-0000 (M-BT58) mouse. These mice are perhaps cheap but in my opinion quite good.
The Cocolino install disk installs some drivers which are not really required for the connected mouse to work but these do provide the conveniant scroll function which is compatible with many Amiga programs. I am very happy with this solution, a great product this Cocolino.
Do note that this kind of USB to PS/2 adapter (at least I believe so) contains no interface circuitry, at least no active electronics, but only converts the physical connection. This means that the USB to PS/2 adapter only works with mice which can support both the USB and the PS/2 protocols in one device. I believe that you only can use USB mice which are supplied together with a USB to PS/2 adapter as a bundled accessory.
I didn't notice any problems at all with Cocolino. It even works with holding down the mouse buttons at power up to get into and control the pre-boot Amiga menus.