Just took my test this morning. The whole process, from the time we were told to report to the immigration office to the time I was finished with my interview, took about 75 minutes. I have to say, although I scored a 20/20 on the test, it was not the piece of cake that I'd kind of been lead to believe it would be. I'm really glad I studied "Discover Canada" well, including a couple of hours last night which definitely reminded me of things I'd forgotten which were indeed on the test.
The interview went quite smoothly. The officer was friendly, but also very businesslike. She'd checked through my application and compared my residency calculation with the report she'd received from border services, and (thankfully) they matched up perfectly. (I had no day trips to the US.). She seemed to think everything was in order, and that I would be invited to an oath ceremony probably in September. (I'll be happy when I get that letter as confirmation, however...and not a surprise fingerprint request or RQ!)
Interestingly, still, my e-cas only shows "In Process;" my LOT line still hasn't re-appeared.