Koffie Cafe is great. It's a quaint, no frills stop to grab a cup of coffee. I'm not sure why, but acoustically, this is one of the quieter cafes in the area. I cannot stand some cafes when it's so loud you can't concentrate, but this is a genuinely better atmosphere. It's cozy and inviting and perfect for a conversation or business meeting. The patrons here are genuinely pretty respectful, which I appreciate. The baristas are friendly and I've never ordered a coffee here that was made poorly. It's a good option for a place to just sit in considerable peace.
Like most Ohio City stops, parking can be tricky here, so set that expectation now. But you can't beat the location. If you're spending the morning working here (as I often do), there's plenty of walkable spots for lunch, including the West Side Market. Just remember to keep feeding your meter!