Instruction: Given the user's review, identify the user's sentiment from the listed options. Answer using one of the options.

Input:
Update:
(2017) Bought a replacement battery from a third party vendor and it's alive again! I can comfortably vacuum the whole house and the juice is more than enough. I will still keep the stars as is since I had to find my own solution to their problems. With the new battery I'm again using it often and quite happy about it. I also love the fact that it doesn't require any disposable bags - you just empty the bag and reuse it again and again.

(2016 July) Batteries that came with the unit really don't last for more than a few mins or so now. Both of them. I have to charge both of them right before vacuuming, and then get it done in one go with 2 batteries and I barely finish my small 2 BR apartment. Guess it's been over 2 years but I expected a bit more. I love the handiness and it works well but I'm contemplating whether to try and get a new battery or get a new one. I also never use without the stick handle so don't need that 2-in-1 kind but just a simple stick cordless vacuum would work, really. Plus I struggle with the corners with this one since it only has this wide clean surface area and I have to vacuum the edges and corners with another smaller handheld one, so I may look for one that has interchangeable nozzle or something. Overall, I'm not as happy as when I first got this 2 years ago, and certainly won't buy it again.

(2015 August) Been using this for a while now, and with perhaps once a week or less usage, the battery is pretty much dead. It lasts barely about 5 mins with a full charge. Lucky that the one I bought came with a replacement battery so I can change as soon as the first one dies after about 10 mins. Another flaw is that it struggles to suck anything near the wall, so I recently bought another vacuum cleaner with a smaller nozzle, and I use it for corners and smaller areas, and this one for larger spaces. Took 2 stars off my original review for the life of its batteries.

Vacuum is very powerful, and collects lots of stuff. Hairs tend to get stuck on the brush, which I sometimes have to cut with scissors to remove. Spare battery is very useful. Would have paid a bit more if there is some way of attaching a smaller hose (like for the car interior and stuff). Overall, I'm very happy and would buy it again.

Options:
A: very positive
B: positive
C: neutral
D: negative
E: very negative
Answer: C: neutral