Well, I was hoping that in the interval of a day or two, someone in a position of authority would have posted more specific information, but it seems that You are stuck with my own impressions, from my own meager experience.
I understand that there was a bus this last year, but it wasn't an "official" EuroFURence offering. It is a fan-organised thing, which this year was organised by some Russian furry fans for anyone arriving via air in Berlin (a day early, I think), which picked up people at the two major airports in that city and delivered them to Magdeburg, and returned those who wished to travel back the same way, the day after the convention ended. I believe that the result was enjoyed by all - sort of a bus-based "mini-convention", as it were - and as I read no complaints about it, is likely to be repeated this year, if enough foreign furries express interest. The cost was dependent on how many people actually used the bus, the more furs making it cheaper. But since it was all-furry-no-mundanes, and was essentially airport-to-hotel service, it had to be a lot less hassle and stress (once everyone was actually on the bus) than a train trip would have been.
Not to say that the train trip is a bad thing! Well, for me, this year it was, but then the whole trip out seemed to be cursed, what with the delay due to mechanical troubles of a timely connecting flight, the unexpected reroute via British Airways to London in "Chicken Class" (I had paid for US Airways First- and Envoy-Class passage, from Phoenix to Philadelphia and on to Frankfurt), missing my preferred train and my "Plan B" train and having to get the last connection of the night ("Plan C"), having the computer freeze up on the ticket clerk, being double-billed for the ticket, being accosted by a Gypsy woman, and arriving at 0300 on Thursday instead of 1100 on Wednesday, hot, dirty, hungry and tired.
Generally, I've found the DeutscheBahn Service to be clean, efficient and reliable, the staff helpful and competent and accommodating (and patient!), and the Magdeburg Hbf is only a three-minute walk from the hotel, it is very hard to beat the convenience from the station at the Frankfurt air terminal, and probably essentially the same level of service from Berlin (I know it is from Hannover). And normally (see above), if you miss a train, there is another within a reasonable time, whereas if your flight is delayed into Berlin, you run the risk of missing the one and only furry-chartered bus.
********
As far as meals go - the hotel maintains two dining rooms with different hours and types of service for "sit down" type meals, but the hotel has also arranged for serving stations within the lobby for light entrees and snacks at various times of the day, including bockwurst, rolls and croissants, chicken "nuggets", steak cutlets at one point, and a rather large and quite-filling hamburger - the "Maritim Burger" - for pocket-money prices. The Burger is a good bet.
Failing that - there is a pizza restaurant on one side of the hotel, a sports bar on the other, with an asian-themed diner next to that; there is a Greek restaurant off a plaza just a little ways from the rear entrance of the hotel; a well-regarded steakhouse down the block and across the street; a Pizza-Hut a block away; and an underground mall with supermarket, and mall-type food court stalls under the office building complex just across the street. There is a McDonald's in the train station, and I would be very surprised if there isn't a Donner-Kabob stand somewhere close by. And headed south on Otto-von- Guericke-Strasse about 5 blocks takes you to the Hasselbachplatz, where there are several Cafes and Bars in the vicinity.
So you can eat cheaper than what the hotel offers, though I believe that it is only just and proper to have at least one "sit down" meal in the host hotel dining facility, over-priced or not. I think the Maritim Burger was 8 or 9 Euro - which is a lot, even for a giant burger like that one was.
If someone has better recollections or can recommend other dining options, I'm sure that they will respond soon...