Have not used it to its fullest extent so do ...
597569
Have not used it to its fullest extent so do not know how long it will last or when the avalanche effect will occurr; but so far it is maintaining a full charge.
3597768
Cannot say at this time because I have not fully read and utilize it as of yet.  Stay tuned.
1176869
OK. I have not used it much so far but hope it will satisfy my needs when I continue studies
479343
I haven't used it a lot, but it has worked to perfection. I did find, by the way, that the machine did not exactly conform to the directions, which indicated a power cut off switch that I never found.
4051476
Have not used it much. I am happy with what it has done so far
1632798
Haven't used it to much, hasn't riden up on me when running on the treadmill, I do find it awkward & restrictive when running & when taking deeper breaths. Or I just had mine to tight.
4608928
So far, its been a handy tool to have. I haven't used it enough to know how well it stands up to constant usage though.

I work as an electrician. So...unless I write a pissed off update later on, Id say buy it.
3430637
I haven't had much of a chance to give a full try out to use everything but like what I have used thus far......
2305160
I am not a heavy user.
did little with it so far and was very happy with the tool.
2795711
Haven't used this much because I bought this to travel with. However, when I have used it it worked well.
2525607
Giving it a 4 only because I have not used it but a few times.  In the few times I have used it it has done great.
893234
I like it but haven't had a chance to tap into how to use all the capabilities it has.
4477771
So far it has done what it is supposed to do,  Would give it a 5 but haven't had it long enough
2499276
I like it, but I don't use it as much as I thought I would.  I thought I would find a use for it every day, but not so much.
3286913
I use it  every now and then ,I will use it more, just have not had time to mess with it.
842786
I bought it but didn't really use it much, so i can't say for sure how efficient it can be.
3676488
Haven't used it enough to find out if itnworks