Maarten Heilbron released his lengthy Olympus OM-D E-M1 Mark II review and it is very positive but exposes a few flaws that might matter to people interested in purchasing one. Below camerahorder compares the OM-D to the Panasonic GH5, Fujifilm X-T2 and Sony a6500/6300. The only real complaint from both reviews seems to be the menu system that Olympus has devised, which is even confusing for Olympus shooters.
Olympus OM-D E-M1 Mark II Amazon / B&H Photo / Adorama