GMG PerformanceReviews of gmg-performance.com

They were fast in getting back to me when I needed help with my broken product.

Very helpful and fast support, they were able to quickly respond regarding my issues. Their products come in surprisingly high quality for the price you pay!

The glasses are amazing! They have gave me less headaches and less eye pain.

A couple of months ago I ordered the GMG Optimizer. I use it alot and it really helps terelieve stress of the eyes. Sadly the glasses got damaged (And i don't know how or why). So I sent GMG an e-mail for a replacement. Although I did not had a insurance for it they sent me a new one, because the damage was not my fault. The support was nice and friendly.

Had a really great support service with them. Easy and quite quick support service. Had a problem with a broken pair of glasses and a lost "item purchased email". Ended up quite quick and now am just waiting for a new pair.

Really happy with my glasses, I received them pretty quickly, so thats a big plus, I had no problems with anything, order, payment or delivery.

Amazing amazing amazing. First of all, the glasses are super super good. I study and spend most of my time in front of the screen and since I've been using these glasses I feel much much better. I sleep better, I feel more energic and it makes me focus and concentrate better. I bought 2 glasses a few months ago. Unfortunately, the temples broke on the glasses so i reached out to the support team and they decided to send me a new pair even though i don't have lifetime guarantee. Great service! Can recommend!

I had an issue with the product which was my own fault and customer service was very helpful.