Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: how safe is it to buy a used Ipod nano
Document: I am a personal trainer and when I workout, I workout hard!!! I have destroyed so many iPod Nanos in the past that the 6th generation is exactly what I needed. Having it double as a watch as well as my music, keeps it safe from me killing it on my arm, hip or any other place barbells and sweat can get to it. AND, I can run the earphones up the sleeve so I don't get tangled up in them like I used to.
It's simple and fast to navigate to what you need.It's the perfect device for getting fit, especially if you use it with theNike + iPod. I'm about to buy the Nike+ Polar Wearlink Transmitter so I can make sure my heart rate stays in range. I used to use a separate heart rate monitor and pedometer, and it was an ordeal to have to clip on so many different devices. With the nano 6G, everything is consolidated into one system.
Excellent price! Worth every penny...would recommend everyone to buy one! Fast and safe delivery!Holds a ton of music and is extremely convenient!
I used it for less than a year and it worked fine. Now it is not working properly. After I play a few songs, somehow it puts them in 'Recently Played' folder and playing it for me over and over. The only way to get out of there is to go back to menu and shuffle. Shaking hand doesn't do it. I would not recommend it to buy.
So my old IPOD NANO (3rd Generation), I loved, loved, loved. I used it all the time to workout, particularly to follow my work out VIDEOS. Well, today it died. So not a big deal, after talking to Apple and no reasonable hope of fixing it, I decided to buy a new one. Well I would expect 3 generations later it would be loaded with great and wonderful ADDITIONAL features and not TAKE away key features of the previous IPOD NANOs.
I do not recommend this IPod Nano 16MB, it appears to be buggy and the GUI interface is complete trash; plus it is difficult to find a blue nano that is not used--I only wanted a new item and not used.
my first impressions weren't that great most because i wasn't used to the touch screen. there is alot of criticism that this one doesn't have video..but honestly who actually records and puts video's on their ipod nano? i didnt on the old model. this is a great new ipod! i love it!
The nano used to appeal to people like me who want a simple ipod with a larger volume but don't want to lug around an archaic ipod classic. Sure, the new nano is smaller, but why is that really necessary? The 4G and 5G are both quite small will fit in any pocket, and that's all I really want.
I really like the nano 16 GB ipod. It holds plenty of music, podcasts, audiobooks, etc. The screen is too small to really watch videos, but for podcasts that don't really need a larger format, it's fine. It isn't waterproof, so find a way to seal it if you run in rain or humidity. You may want a skin for this, but I haven't used one, and I've had no problems.
The software I would rate a -5 stars...the worst program I have ever used...poorly designed, hardly any though went into the program. After attempting to import files from my computer or rip a CD, the IPod Nano failed and I had to recover the Nano. All of the icons were frozen on the nano it itself, and them after turning it off and on over and over. I could only see three of 6-8 icons.
Answer: I bought this Ipod nano about 2 months ago and have had no problems with it. Looked brand new, had no problems downloading my song and it sounds great. I bougth this because I had lost my original one in the snow and never found it and the new one isn't compatable with my car. But I also bought a Ipod refurbished on line from Amazon and I still have it and it still works. I just changed to the Ipod nano for more GB and I liked the touch screen and also I could use the genuis on it to get a playlist without the computer and it works with my touch system on my car. You just need to research the condition that it's in. I have never had a problem with Amazon or any of their suppliers. They tell you on line what condition the product is in, if it's new used or if it has a scratch or whatever. I hope this helps .