We love the Zalto Universal wine glasses. We are wine collectors. Overall a well crafted and very high quality product that is a pleasure to be around. I can strongly recommend.To drink a fine Burgundy (0r any wine for that matter, hence the name 'Universal') out of a 'regular' crystal after getting used to this glass feels totally flat, and a waste of a good bottle. You miss half the experience- the color of the wine catching the light, the wafts of fruit, then minerals, and then the taste, much fuller somehow. Think of all that work that went into the winemaking itself, the care of the land and vines, the harvesting, the design of the bottle, the storing, the marketing, the freight. Add to that the hours YOU spend working in order to pay for that bottle of wine, and possibly the years of careful storage in the wine cellar.This is not an inexpensive glass. It is an investment. And the glass is delicate. We broke two already. But you do not need a full set, just a few for the people in your life who really care abut wine. If you need convincing, buy one of these and do a side by side comparison with your 'regular' glass, perhaps even a beautiful crystal inherited from a grandparent. Drinking the wine in that other glass now feels like eating weekday food cooked quickly on a gas barbecue vs. a charcoal grilled dinner on the terrace. Or like flicking on the gas fire for 10 minutes between chores vs. enjoying a log fire and kicking back for an hour and enjoying every bit of the fireside experience, the crackle of the logs, the smoky air and the flicker of the flames, the glow of the first embers. I could go on.I have to confess that I thought this glass was a joke at first, an engineered wine glass... with a pretentious name 'Thinking art', and from Austria?? With that ridiculous price tag. Holding the thin stemmed creation is daunting at first, and the weight of the wine up top feels unfamiliar and unstable as you swirl it in the glass. And the fingers have nowhere to go. And you fear you will break it when you plonk it down too fast on the table and hear a crashing sound. You need both hands at first to stabilize it. Except for their beautiful champagne glass, the Zaltos are not necessarily pretty to look at, almost grotesquely big, like those trendy glasses popular in hipster restaurants. But now, having tried them, I realize why the size is important and I no loger find it grotesque, on the contrary. Like a Pavlov dog who hears the bell, I now know a treat is coming when I see these.On the negative side, you should not try to hand wash and towel dry these. They will break. We broke one glass handwashing then cramming a tea towels into it, and another by closing the dishwasher door too fast before the tray was in fully. I still give this glass a 5 star review as every fine crystal is sensitive, not just this one.The dishwasher loading requires some concentration. Put them in last and remove them first. And ideally leave this work to the next morning when your hands are steady. Definitely do not involve helpful guests in the process. The glass needs to be supported and to be leaning at just the right angle to clear the machine walls and ceiling (in most dishwashers you can temporarily lower the top rack a little using buttons on each side of the tray), and don't cram anything else up close that might rub against the glass. Other than that, fill the dishwasher as as you usually do and use your regular detergent. You can leave the glasses in there for hours after the cycle finishes without coming out streaky. At least in the 3 dishwashers I have used. Do it right and the glasses come out sparkly clean. And use paper towel, not tea towels for that last drop of water on the rim.