Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: No surge protection

I bought this to protect my new PC that I bought just last week. We had an electrical storm today. My motherboard is now toast. I only saw one other person in the Amazon reviews talk about this experience (probably b/c electrical spikes of this magnitude don't happen every day).If you buy this unit, be sure to buy a good surge protector. It may do the battery backup part OK, but don't make the same mistake as me and rely on it for surge protection.