Instruct: Classify an Amazon review into positive or negative sentiment.
Query: BIG help!

It was hard to choose a particular brand of saliva microscopes and I'm glad Ovulite was my choice!It's small and practical, you can turn the eyepiece to better focus and the green LED light makes it really easy to see the fern-like patterns.The fact that they offer a toll-free 24/7 helpline is great!!! I used it once and they were really helpfull!The only things I didn't like about it were:1. it was a little disappointing to open it see that it came with a tiny scratch on the eyepiece, but it didn't prevent me from clearly seeing the result. The whole eyepiece looks very fragile... I was always afraid of breaking it.2. it doesn't come with anything to clean the slide with... ended up using a q-tip to clean it.I used the microscope the whole month of April and am glad to say that thanks to Ovulite it was a breeze to pinpoint my best fertile days and just found out that I'M PREGNANT!!!! :)