We crossed in late October. Rocks were rough, but doable even with 4runner stock suspension and tires - no issues at all. Depth was maybe 18 inches at the deepest point. But keep in mind, water levels can change quickly in the desert.
The trail overall is beautiful. The Overland Journal GPS tracks are a great place to start your route planning.
Overland Routes | The Mojave Road - Expedition Portal
Recommend you do the Mojave Road over 3 days to have time to explore side trails and hikes. Keep an eye on elevation - overnight temperatures get quite low at the higher campsites.
On the last trip, we noticed some increase in trash at campsites - please remember trash bags and pack out what you bring and maybe a little bit of what you find if you have the space.