I’d say very low. I’ve stayed here four or five times and never had a suite. However that’s not why you stay here. It’s the sweet spot of location and cost of all the Marriotts in London. The breakfast and evening alcohol are good. Evening snacks not so great. So it comes down to how much you want to spend on a reasonably located hotel in London and whether you’ll want decent beer and wine for free in the evening as an elite. I don’t think an actual suite upgrade is on the table at this grade of Marriott in London.