We were a bit nervous about getting our v1x opencart site upgraded as we have had trouble with past developers breaking the site but SEO Leaders were referred to us by friends who have used them and they did an A1 job. Full new site theme build in our company design (they made the design) and all the bells and whistles. Since the work was all done our sales have increased by 200% and growing. We would fully recommend this company for any ecommerce opencart work.
