Just a note: LG has also a new 5K 27” display aimed for Apple users [1]. Worth taking a look.
[1] https://www.lg.com/us/monitors/lg-27MD5KA-B-5k-uhd-led-monit...
[1] https://www.lg.com/us/monitors/lg-27MD5KA-B-5k-uhd-led-monit...
When I replace it I'll have to sort out the speaker situation (currently using the ones on my secondary)