These were a life-saver! I bought 2 of these and I was a little unsure of the quality based on the price of this item, but was pleasantly surprised by how well it worked for me over 6 weeks in Europe and UK.  Stayed in over 22 hotels and on a train sleeper car and never had a problem.  I travel with a CPAP breathing machine and it was critical to have power every night so I could sleep.  I also had an iPhone and my brother had an iPad and the USB charger was great for both.  I could also use one plug to both power the CPAP and charge the iPhone.  It was really nice to have the red lights that indicated that you had power since many outlets in Europe and UK have some sort of switch that turns the power off to each individual outlet.  Also, on the train, the red light wast coming on and let me know that the outlet wasn't working.  I worked with the conductor to get some circuit breakers on the train reset by letting him know when the red light came back on.  That was quite a time saver and great tool for that purpose.