Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Cups that fit I have had issue with coffee mugs that fit in the b30.  They are either to tall or overflow.  Any suggestions on a good cup for the b30?
Document: I bought this when my larger Keurig broke (2 years) and I just couldn't get it to work. It took up less space which was nice but I didn't realize until afterwards, most of my mugs did't fit under it, a minor inconvenience but worth noting.It worked well for a few months and then started leaking water. The last week or so, it works and then it just shuts off.
We love, love this coffee maker ! It's great on space . Some of the k-cups aren't that great and some others are, it's a hit or miss just like with any other coffee. The only downside is that you can't put the taller mugs under it.
A nice concept, but some problems. First, I will say we will return the machine, in that the nature of problems dictate it may be faulty. A recent order of coffee, after brewing about 200 cups, led to the first 7 of 8 k-cups "blowing out". About 1/2 of the cup lid blew out, letting coffee grounds overflow into the cup, the Keureg, and the cabinet & floor.
I have bought two of these machines over the past two years. They work great for the first  six months to one year. After that, the machines begin not brewing the cups properly. Each machine behaved exactly the same after approx 6 or 8 months. The machine begins dribbling out the coffee and finally stops working completely. I would not buy another. Don't know about the larger machines. I bought these because they fit properly on my counter.
I bought this for my husband. He loves the full size Keurig we have at home. He does not like the coffee from the little coffee makers in hotel rooms, so this Mini Personal Keurig brewer seemed like the perfect gift for him......and it is. We enjoyed the same delicious coffee we have at home. I bought the carry bag from the Keurig web site. A zip lock bag of K-cups, sugar and individual creamers fit right inside the bag.
I do like this little machine. It makes a good cup of coffee and hot tea. My only problem with any of these kind of 1 cup makers is it makes only 6oz 8oz or 10 oz cups of coffee. Most people now adays drink 12 to 20oz of coffee. New coffee cup are at least this big too. I wish anyone of these 1 cup machines would make 12 or 16oz of hot drinks. Other than that its a very good maker.
I bought this coffee maker to use in my office. I had a 12 cup coffee maker before this one, and I was pouring coffee down the drain every day. Also, I figured 12 cups a day was not a good habit. So one cup at a time seemed like a great option. I love this machine! There are so many different flavors to choose from, and not just coffee. It also makes tea and hot chocolate. And it's very easy to use.
Amazon replaced the shipment of K-Cups promptly and with no questions. Rather than that, about 1 in 4 cups brewed blew out in a similar manner, ruining the coffee. Not satisfactory for the mess, nor impact on the near 50 cents per cup cost! Again, will return the machine for replacement -Amazon is better than good for replacing defective merchandise!
So far so good with the mini brewer. Also purchased the K-Cups to make whatever coffee I want. The minicups are very convenient
It doesn't take up a lot of counter space and just a good addition over all. I also purchased the reuseable filter to brew my own coffee rather than having to purchase the k-cups, but the k-cups are nice to have on hand too. Overall, I feel the money spent was well spent. Love my mini.
Answer: I use a Coleman Double Walled Aluminum 10oz cup for my Mini. It works great.