Awful! awful! awful! Their service certainly doesn't worth of £100. CERTAINLY NOT! They have such a bad customer service. Even if you have a problem caused by their mistake, they wont waste their valuable time for sorting it out. So you will have to waste your valuable time and chase them up. And, please don't forget to get them to put everything on an e-mail so you have a proof. This is a business, and you are their customers. So they wish taking your money and getting rid of you asap (just like the fast food chains). Ohh!! before forgetting, don't you dare to think that you will be seen by some experts!!!! the test is conducted by receptionists. ( the last part of my test was especially a joke. Since I get that in NHS regularly every 6 months due to my condition, l could easily see the difference as knowledge wise. She didn't really know what she was doing, and spent less than half time NHS staffs spend on that actual test. And! and! and!, my ordeal at Harley branch ended up with not seeing a doctor at all. Conclusively, I was told that I would be e-mailed. Let's see :)) Funny thing is that once I had a voucher for a free eye-test at Boots, I honestly admit that it was better than Optical Express hahaha.. However, I'm pretty in pain for wasting my £100. But, this is life. sometimes, you get manipulated, screwed unfortunately. But, in my case, this can only happen once with Optical express. I'm lucky actually, as it is scary to think of what would happen if I had a surgery or an operation with them. I recommended other clinics that charge half price; or private hospitals if you wanna pay more for the detailed test (certainly for the proper treatment). I did my warning, now it your decision!