I don't own an Ultimaker, but friends of mine own several, and I've been very impressed - the Ultimaker printers are amazing workhorses. Fast, clean prints, time after time. And it's all open, which is a big plus in my book.
Yes the ultimaker is a great printer. I had a wood model that I put together as a kit. It's a lot of work putting one together and learning to tune it up as a first printer. I don't think I would do it again as a first printer in kit form. But once figured out it is one of the best printers I have owned. A friend has the ultimaker 2 and it is a wonderful printer. Like you said, produces great prints over and over. Cost a lot but it really works great.