We stayed in a junior suite back in December 2004 and it was great. It as not concierge and many people pointed out to me it is not your typical suite, but since we are Starwood members we used points to be upgraded for free so I didn't care if it was your typical "suite."
There was quite a bit more room than a standard room, with a sitting area with a round table and 4 chairs. And the room had windows almost all the way around with a balcony, it was great. Well worth the 1000 SPG points per night, which, by the way they forgot to deduct from my balance so it was even better!