Back in the mid-90s I worked with a chap who was an OS/2 fanboy. We just started rolling out PCs in our IT department to replace the XWindows terminals we were using to support our UNIX estate, which if I recall correctly was comprise of one DG UNIX box. I gave it a go and thought the multitasking was novel, running multiple instances of Solitare in auto play. I remember that you could also run Windows apps but first had to install Windows 3.11 inside OS/2. It was the first OS I used to surf the web and IBM were continually releasing updates to the OS/2 web browser at the time.
For reasons I cannot remember I eventually gave up on it and switched to NT 3.51 and shortly thereafter NT 4.0. Most likely because I needed some software that wasn't available natively for OS/2 and the Windows 3.11 compatibility thingy wasn't suitable.
For you young-ins out there, this was back in the day when you had to buy your operating system in a box off the shelf from a store. No downloads. I remember standing in line at Futureshop chatting to a guy behind me who was about to purchase OS/2 Warp. Wonder how things turned out for him.