It’s not bad in the morning coming into Arlington. The only backups I’ve seen are from the detoured traffic coming up the 14th St N hill to the intersection of 15th St N & Courthouse Rd, and there’s a bike lane to ride right past those. In the afternoon I’ve been taking Fairfax Dr along the north side of 50 instead of the Arl Blvd service road and turning right onto Meade St to head back to the city. Knock on wood, it really hasn’t been that bad.
That new all-way stop must really mess with anyone trying to get the KOM of the hill south from 50 on N Queen St though…
/edit – as I understand it the all-way stop and the temporary signal are there for 9 months