I am very pleased with this recorder. As others have mentioned, the menu system takes some getting used to, because it is poorly translated and not intuitive at all. Once you get the hang of it, and figure out what you want to do with it, it works extremely well. One thing to be aware of... When I first used it, for the first 4 or 5 minutes of recording, the sound was terrible. For whatever reason, that cleared up and now the recordings are crystal clear, so don't give up on it if it starts out a little rough. Also, I noticed that it doesn't like it when I use an adapter to split the signal between the microphone and the earphones. I have a headset that has both earphones and a mic, so I bought a splitter (the device has separate holes for the headphones and the mic) so I could use my headset. For whatever reason, the sound was very bad when I used the splitter. I decided to use the supplied mic and earphones and it works perfectly. It also works with any other headphones and the supplied mic. Last but not least, the hole for the mic was very difficult to plug the mic into at first. After I plugged it in and unplugged it a few times it works fine now. I am giving 5 stars because it is the only device of this kind I can find, and it works great. Also, the price is great. I do hope they eventually make another one that has a better menu system.Works well sound could be a little better for the built in mic. Works good on the phone though. The initial turn on and start recording always go to an initializing screen first so make sure it's turned on and ready to go before hand.For the money this thing is horrible! The instructions are horrible. Customer service is horrible. It doesn't do what it advertised. If it does I can't figure it out and the company will only regurgitate the horrible instructions to assist. I am giving it one star because that's the only way I can give a review. If permitted, I would give -1 star.horrible. Doesn't work as advertised and the instructions are just down right junk. The Bluetooth mode does absolutely nothing. In that mode and synced with my phone you only hear my voice not the person on the other end of the phone and the voice you hear is just though the speaker on the device not through the phone. Complete garbage. I will just chuck in the trash.a pain to operateFast, shipping, Item works really well.