I owned a pair as well until I left them in the seatback on a flight. I was given them as a gift and really enjoyed them - the quality and isolation provided by the noise cancelation was very good considering the price range.
I will say that it is somewhat inconvenient to have to enable the noise cancelation in order to use at all. There are some instances when I prefer to have some external awareness, and this didn't really accommodate that need.
Overall, I think these are a great option for someone looking for a pair without significant tradeoffs and with limited time to research. That said, there are definitely pairs with better quality out there. If you have the time I highly recommend reading reviews on Head-Fi prior to purchasing.
I will say that it is somewhat inconvenient to have to enable the noise cancelation in order to use at all. There are some instances when I prefer to have some external awareness, and this didn't really accommodate that need.
Overall, I think these are a great option for someone looking for a pair without significant tradeoffs and with limited time to research. That said, there are definitely pairs with better quality out there. If you have the time I highly recommend reading reviews on Head-Fi prior to purchasing.