After borrowing a friend's ConAir steamer, and reading numerous reviews, I purchased this Jiffy from Amazon about a month ago. The Jiffy seems to be better-built than the ConAir, and puts out more steam, more consistantly than the model I borrowed.
In the last month, I have steamed everything I can think of in my house, to see how it works. I have been pleased with this product, and here is what I have learned:
1) A steamer is not an iron. While I have read reviews of how you can press creases into clothing, I have not been successful in this (yet). I don't really care about creases, though, and have not spent much time trying.
2) A steamer is a tool. You have to learn how to use it properly to get good results. Steaming from underneath works better than steaming downward into the right side of the fabric. Just like anyone who uses a hammer a few times is almost certainly going to hammer their finger, you will probably burn yourself while you are learning to use a steamer. When I first started using the steamer, I wanted to steam upwards, like I iron. It was counter-inuitive for me, but it works better to steam downwards.
3) Wrinkles really do fall out of fabrics, but this seems to only happen with synthetic fibers or blends with a high percentage of synthetics. If I had trouble ironing it, it will take some work to steam it. However, I always iron in more wrinkles than I take out, so for natural or difficult fabrics, I do a better job with a steamer. Fabrics that I was afraid to iron (too thin/delicate) steam beautifully.
Now, about the Jiffy J-2000 specifically:
This steamer heats up very quickly, in just two or three minutes. I like to turn it on while I decide what to wear, and by the time I get it all together, it is ready to use. The wattage (1300) is slightly higher than most personal steamer models and makes a big difference in how quickly you can finish a garment.
The steamer is very sturdily built. It uses heavy-duty plastics, and comes with a wrench (magnetically attached underneath the steamer body) to secure the parts tightly. The pole that holds the steamer head and clothing is shorter than I would personally like (and the hose is a little shorter, too) and stands about 5 feet. I could not steam all the way to the top of my curtains, while they were mounted to the wall. The water reservoir does not leak, although when you pull it out, some water does remain in the connection area, but not enough to make a mess.
The list price on amazon for the steamer was 169.99, quite a deal more than most of the other steamers listed on Amazon. I purchased mine with a special 25$ off through Amazon, so paid 145$. I think that it is worth that price. I would not pay this much for the ConAir model that I borrowed. In a year, I may think the Jiffy is worth the Amazon list price.