I bought my first 4-inch Stabilla, the cheapest model, when I was an apprentice carpenter and could hardly afford it. Now I'm 67 and this level is not to be confused with the new one. I've used it for rough woodwork, concrete and tile work and still use it for high quality carpentry work. I don't know how many times I dropped it because I can't count that high. It's still pleasant to use: it's like an old trusty friend. Just bought this model, so we are still ecstatic, romantic stage.