Whilst the concept of aligners are great, unfortunately EZ smile was not suitable for me. I had already used Invisalign 10 years back as I had crooked teeth. After my completion, they went slightly back. So I decided 10 years later to try EZ smile to finish off what I had started previously. So not a major correction I was asking for. EZ smile is affordable compared to Invisalign and it is the same concept. The problem I had with EZ smile is that whilst my teeth looked straight from an underneath view, they were not straight from a frontal view after completion of the program. I then got a few alterations after which at one point my teeth actually moved with a gap, which required another set of alterations to fix it up. By the end of it, I did not get the result of what I had requested from the beginning of the whole program, which meant that both EZ smile and myself agreed that there was nothing further that could be done. The before and after shots from the front view were the same. Only underneath you could see the difference. They were always accommodating and very supportive and the product itself is of quality, I feel that perhaps that as I was not able to speak to an orthodontist directly, the messages I was sending for what I specifically wanted, was getting lost in translation.