I bought the Ekobrew Cup Refillable K-Cup in an effort to save money. I am a heavy coffee drinker and I can easily drink several cups of coffee every day. This can be quite expensive when it comes to buying K-Cups. I love the convenience of K-Cups, but I also wanted to cut extra costs wherever I could. The Ekobrew Refillable K-Cup does save money because you can use regular coffee in it instead of always needing to buy more K-Cups.
One thing I don't really like about it is how messy it is. It's not really a big problem, but once the coffee grounds are wet, it can be hard to get them out of the K-Cup to brew another cup. I also like how I can put more coffee in it to brew a stronger cup of coffee than most K-Cups are capable of brewing. The Ekobrew K-Cup is very easy to use. Simply open up the top of it, scoop in your coffee, close the top, and then put it in the Keurig like a regular K-Cup. You do not have to remove the Keurig filter holster to use this refillable K-Cup, which is definitely convenient. Overall, this is a great thing to have if you love to drink coffee and own a Keurig.