Given an English language product review, determine if it is a Good Review or a Bad Review. A good review is one where the product's review has positive tone and Bad review is one where the tone of product's review is negative.

When i plugged in on first time, sparks appeared from it, as soon after connecting, some electric shocks came out. The charger seems ok but obviously this is not designed for Lenovo Vostro 1520.
Bad review

I had been planning a trip to the Galapagos Islands, and this guide was required reading by the tour group guide. The guide is thorough, providing information of interest and useful for all travelers traveling among islands, but the format of this book severely detracts from any pleasure of seeing them. There's an interactive CD-ROM provided which allows you to see photos that were previously in the book, but not the whole trip. Additionally, there are many grammatical or spelling errors.
Bad review

How can anyone spend $99 plus shipping when it could have been included free on the boxed set.

Bad review