Instruction: Carefully assess the user's review for any strong expressions of sentiment, either positive or negative. Based on your analysis, select the most fitting sentiment option from the provided list as output.

Input:
I've had a lot of other travel mugs out there, and if you use this one properly its the best I've seen.

What does that mean?

- like any travel mug, if you want your coffee/tea/whatever to stay at the desired temperature you need to prepare it.  That means filling your cup up with hot or boiling water and letting it sit for a minute or two (or five if you have the time.)  Otherwise some of your heat (or cold really) will end up being captured by the insulation in the cup.  I've pre-heated this cup, and BURNT my mouth several hours later (2-4)because my coffee was still that hot.  I've never gotten that with another cup.  For those who say it doesn't hold enough, it holds a hair shy of two cups of liquid.  If you drink a LOT of coffee it might not hold enough.. but do you really need to carry more than two cups of coffee at the same time?

- It is indeed a leak-proof cup.  Like any other leak-proof cup you need to open it to drink from it.  If you do not unscrew the cup and break the leak-proof seal you aren't going to be able to drink from it.  I love this factor because it means I can throw it into my bag and not worry about it leaking (which my oxo cup&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/OXO-Good-Grips-1055291-LiquiSeal-Travel-Mug/dp/B0001YH1LG/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">OXO Good Grips 1055291 LiquiSeal' Travel Mug</a>&nbsp;started to do after the 2nd week of use.)  If you overfill this cup it will leak, since the volume will exceed the quantity the cup can hold and it will spill over the top.  When you fill your cup up, close it and then turn it over in the sink.  Any excess will drain away and you will not have any issues.

-The cup lid is two pieces, but you can separate the two to clean them, and I've never had any liquid enter this space (unlike the OXO cups).  Some residue can form in the little crevice of the seal, but all you need is a dish brush or toothbrush and a little soap.

The only way this cup will leak is if you overfill it (and do not get rid of the excess) or you do not screw it down tight enough.

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