Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Had it and returned it - serious design flaw

Being so small and light-weight most times its undetected almost. The issue is the front grill and upon starting up, the heater very, very fast heats up and the grill is really, really hot. Consequently, I have had the following issues:a) My son (3 years old) suffered burns in calf (extreme red bruising) when he accidentally touched it.b) My guest had a small dog which cried for 2 hrs after the thing was switched off but fell on her furry backc) Although manual says xx in by yy in to be kept etc., etc. in reality not always possible. I had some small shreads of rug near the thing and detected burn smell.My advice is it's unsuitable for those who have considerable instances where toddlers/children/pets run around.