It's bumpy, the bike lane is too narrow, there's the dangerous exit point when joining up with the main bridge as you have to cut across the car lanes to join the next motorbike lane...it's Vietnamese. It does however scythe a path straight through the narrow streets of District 7 below and shorten the PMH - D2/Hanoi Highway journey time even more.
This is another piece of the ring road. Quoc Lo 1A - the main highway that comes from My Tho and then north up the eastern side of Saigon and eventually looping around the north of the city to exit in the west and Thu Duc/Bien Hoa used to provide the only navigation of HCMC. Now, turning off the highway 1A you can join Nguyen Van Linh and shoot straight across the south of the city, through Phu My Hung and over the Saigon River to reach almost the same place. Work is ongoing on the D2 side of the bridge to improve the link to Hanoi Highway even more.
East-West highway also due to be completed (tunnel and Thu Thiem section) some time in the near future!