I eat at this place at least once maybe twice a week.
The pho broth is just perfect and not as salty as you find at Pho Pasteur or the Cow Heads place on Spadina (the name escapes me right now). I know this is a personal preference, but I find their clear and un-salty broth to be some of the best I've had.
The meat is decent, but as others says the rare beef cooks very quickly (so eat it up quick!). Tendon and Tripe are also tasty options.
Service is efficient and friendly, and quality is consistent.
The go to Pho Place downtown in my books. They'd get five stars if they dropped an additional piece of beef/tripe/tendon in there (though this is a minor quibble... my tripe intake is probably already too high).