katypop ---
We've never needed a coffee maker, but I've read many posts that people have requested them from housekeeping in various resorts. You might plan to bring some extra coffee, though.
You're the only one that can decide if it's worth while to get a mug. at $2 or more for soda, you pay for the mug pretty quickly, plus it's a souvenir (if you like the mug in the first place). Hopefully, someone will post about refills at the pool --- I know we've had mugs at OKW that we refilled at the pool. Other resorts had the fast food area very close to the pool, so we refilled there. Mara's is right by the pool, but the pool bar would be closer.
Don't remember about Boma's. Can't recall if drinks were extra or included in the meal price.
If you're on the side of the Lodge closest to the pool, you'll be closer to Mara's. BUT, that's also the side closest to the bus stop, which is convenient, but might possibly bother you if you're on the balcony -- especially if you're on a lower floor. There's pros and cons for almost every location you're in. If you're not going to be in the room much, this probably isn't any big deal.
Have a great trip! I'm jealous.