I've now done 4 or 5 stays at the Hotel PUR and another 2 or 3 at the Delta. For my purposes, I tend to prefer the Delta for both location (it's closer to where I need to go) and for the lounge. I hasten to add that the lounge is nothing super special; I just like having a place where I can grab a quick soft drink or cup of tea and of course have breakfast in the morning. The breakfast is generally a continental affair, but they also have scrambled eggs. The rooms in the Delta are reasonably modern and have a variety of connectors built in to the desk area so if you need to plug your laptop into the TV, you can easily do so. There's also a wired internet connection available which I personally like. The main downside of the Delta is that their one restaurant is at best, uninspired. Fortunately, Old Quebec City with its many restaurants is a mere 600m or so walking distance.
The Hotel PUR on the other hand retains its quirky personality. I've learned that the conference rooms are on the second floor. In the neighbourhood of the hotel you can find some semi-interesting restaurants and one pretty good one called
L'affaire est ketchup. IMHO it's well worth going to that restaurant to sample their creative and tasty fare served in a humble setting. Just beware that the kitchen is very open so cooking smells permeate the whole place. I had to wash my shirt when I got back to the hotel - an extra effort I deemed worthwhile as the meal I had was memorable. On my 3rd stay at the Hotel PUR I was upgraded from my normal basic room to the Presidential Suite which I obviously appreciated. It was an especially nice upgrade since I was there for 3 nights.
In a previous post I commented that service at the Hotel PUR restaurant is extremely slow. Well, it still is. For breakfast I've stopped going to the restaurant and instead tend to grab something at the AL van Houtte coffee shop which is accessible from the lobby of the Hotel PUR. van Houtte is also slow, but they are at least faster than the hotel restaurant. I did order (dinner) room service once from the restaurant and it arrived in what I felt was a reasonable time of 20 min. Typical of room service the price was expensive for what I got but it was a rare night where convenience outweighed price.