We Follow magento standards & No Core file edits.
I must say working with Invanos has been a very memorable trip. As in when we had a major customization to be done they the reliable team helped us understanding the complexity of the project and gave us solutions at reasonable prices.
A company that will stand by you in the oddest of hours and by far the most reliable Magento partners I have met and will surely work again with them.
We’ve been working with Invanos for more than two years now and we’ve always appreciated the timely response that we’ve received, be new developments or bug fixes. More than being service providers, they have been technical partners who take care of our development, maintenance and hosting. The team is always responsive and happy to help 🙂