You can also join the A40 w/b at Lynwood Rd. I don't know what the queue is
like.

I'll make a note of that thanks..

Generally I'd avoid it. The connecting road, Brunswick Road,
frequently gets blocked up with traffic coming from West Ealing
trying to get onto Hanger Lane, heading for A406 north or A40 east.
Also there's a lot of school run traffic around those little streets.

Right.. I sometimes get a bit annoyed by it, but I guess if I had kids I'd
prefer to take them myself rather than have them get a bus or something..