I, for one, actually think this is a reasonable topic.
In Denmark, there's two major transport players (that I'm aware of). DSB and Midttrafik. They work together pretty closely, in that it is possible to get a hybrid-card that works for busses as well as trains. More on that later.
Most regional busses look something like this:
https://upload.wikimedia.org/wikiped...%C3%85rhus.JPG
And then there's the intercity busses that look more like this:
http://b.bimg.dk/node-images/459/10/...dlgges---1.jpg
I rarely ride the intercity busses, since I live well outside the city, but they're a mixed bag from what I hear. In the city I study in, they supposedly run every five minutes, but it's closer to every ten minutes, with gaps ranging up to 20 minutes, I think.
I frequently take regional busses though. A typical bus is about 5 minutes late if it goes to the city, but if not, it's almost always on time. If you're riding them from the big city, it's a pain in the ass to get out of there, because there's constantly road work, stops every five minutes that every bus stops at at, even with an hour of bus riding to go through after exiting the city and general traffic.
The inside is pretty stock; shoddy seats with strange marks and bits of chewing gum on the back, hand-rails for anyone unlucky enough to get on after all the seats are taken, windows that are technically possible to open, but are usually bolted shut or just too stiff to move and seats for the handicapped at the front. But they do have wi-fi in what I think is roughly 80% of all regional busses now, so that makes up for a lot of it.
Paying for them is alright though, even if the price makes them a questionable choice (from what I've read, it's slightly more expensive than paying for the gas to get there in your own car). You can buy a one-time ticket, you used to be able to buy a ten-time ticket for a discount, you can get a card that connects to a special transport account so you are withdrawn based on when you check into a bus and when you checked out, or you can do like I did and get a bus-train card at a slight discount for students. Which leads us to, the trains.
DSB is the main go-to for trains in Denmark. From what my father and grandfather (who used to work for them) tell me, DSB used to be quite reliable and almost always on time. These days, it's kind of polarized. It's either right on time, or it's cancelled/extremely late for any number of reasons (my dad's favorite at the moment is "leaves on the track"). Normally, I take the train, what with power outlets, better seats, more room, better air, but at present, local authority in the city has decided they need a whole new railway system. It seems like a bit of a mess, since, to replace it, they've added additional busses and the city is already packed with busses and now with the roadwork that comes with making a new train-line it's a touch difficult to get around. But I digress.
Most trains I've ridden look like this:
Now, this image is a bit misleading, because the train looks rather shiny and new. It's only a few that look that way. Most of them have grafitti all over them, making it difficult, if not impossible sometimes to look out the window. Supposedly, DSB bought some trains from Italy a while back, but I don't think they received any of them. I never looked much into it, because DSB is the butt of too many jokes already. I think this is why they run quite a few trains that seem a little outdated.
I wouldn't say Danish public transport is all that bad. But trying to make sense of the route-plans, regardless of if you're taking the train or bus can be a bit overwhelming, because there are so many holidays in Denmark and each of them is treated quite differently, so there's no telling when what runs. It's been close to costing me some exams here and there and more than once I've had to cancel plans because I've gotten the bus-times wrong.