I recently hired Greg Turner to review a troublesome WordPress website, which had been displaying both database and slow page loading issues. Greg quickly and professionally diagnosed the issues, performed fixes, and also offered long term solutions which I am in the process of implementing with him. Greg was fast and thorough, and he displayed an incredibly comprehensive technical knowledge of WordPress, hosting, plugins, and database issues. He also took it upon himself to monitor the site after hours and on weekends during the process, and I feel he went above and beyond the initial scope thus providing tremendous value to the entire process.
I highly recommend Greg and his skills, will be recommending him to my clients as well and will continue to use him as a first tier resource in the future.