Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Riedel is the best in fine glassware.

I've been using Riedel for years. (Pronounced "REEdul") Their best line is handblown Austrian crystal and is called the "Sommelier" series. VERY expensive, but peerless in quality and beauty. The next line down is also very fine and is called the "Vinum" series. My white wine glasses are from this series. My red wine glasses are from the "Overture" series -- the Magnum glasses. These are just the right size -- the Vinum can get quite large. I also prefer a shorter stem, which these have. I thought the Overture regular reds were a little too small for my taste (and smell!).Overture is a little more durable, MUCH cheaper, but not quite as elegant. Still, they are very nice glassware and certainly nice enough to have for fine dining and guests.I would suggest you NEVER put ANY Riedel glassware in the dishwasher. This is high quality Austrian crystal and it is definitely not a good idea to do that.