The product works great. I bought it because I moved to Europe. I think that having the correct plug for my computer is safer and slightly more convenient than always using a prong adapter. Note: This product is not very well labeled. It is not 'polarized' as the title suggests (European outlets are not polarized). What it should say is that it is grounded, or in other words it has 2 prongs plus the grounding connection, which connects to a computer with three prongs. The other product that is labeled 'unpolarized' should really say ungrounded, which has just the 2 prongs.
Rating: [5 of 5 Stars!]