The problem with that café is their hours miss both the before-work rush, and the after-work rush, with them closing shop at 6pm. You have to be _open_ to take money.
There is also the trouble that most of the people who will be around at close of business likely came in an hour or two earlier, so you are essentially paying someone to monitor the cafe without bringing in any new revenue.
And it's not just them, I see a lot of local businesses in this area struggling, but the problem is they aren't open to take my money at reasonable times. There's another café even closer to me that is trying to make it, but they are closed 2 days a week and it's not the weekend, I'm not sure which days they are, so it's hard to check it out. It's just baffling to me - you pay rent 24/7, you have bills every month, and staff … but if you want to take money (generate income) you have to be open. If you want to make the most money, shouldn't you try to have your doors open the most amount of time you can?
The dumbest thing in my mind is that they are open for like 4 hours on Saturday (7am - 11am).
I think the problem with that particular coffee shop though is that they lady who owns it also runs a catering / event hosting business, so the needs of the coffee shop come last.
I had a good chat once with a guy who runs a small coffee roastery and number of fancy third-wave coffee shops in a posh university town. One of the most popular coffee shops in town went completely bankrupt and he ended up taking it over. The first thing he did was turn off the WiFi; to hear him tell it, revenue doubled or tripled overnight as soon as he did. Turns out actually having available seats can drive sales, and having a giant store in a high-rent area full of people who buy one $4 coffee and sit there for five hours isn't profitable. At the time, he was in the process of renovating half of the space to be formal paid coworking.
(I personally think there's room for middle ground. My favorite local coffee shop only allows laptops in a dedicated section, which has ample power but also higher-density seating than the normal area. When it's warm enough to sit outside, they allow laptops outside during the week but not on weekends. Another favorite coffee shop just turns the WiFi off on weekends.)