Instruct: Classify the given review into positive or negative sentiment.
Query: Adhesive makes a mess

I applied this film per the instructions and it looks awful. I've installed several films on windows in the past, but this one is the only one I've seen that has adhesive on the back. The others all relied on surface tension, which has always worked great. The adhesive on this product got all gooped up behind the plastic film as I squeegeed out the bubbles. It's up there firmly, but it looks terrible. I wrote to the company to ask for help, but no response. I will have to take it down and replace it with the non-adhesive variety, but I'm not looking forward to it - I imagine it's going to take a while to get it off...