Do you have a customized implementation in your Magento e-store? Then you must be scratching your head a lot. Day-to-day issues can create a ripple effect in your customized implementation or even rectifying an issue can change its behaviour if not handled properly. Then it is again the same process of finding what went wrong, how to rectify it cycle comes in. Rectifying issues and changes, with a customized implementation on the side, have to be done by someone who is an expert. A Magento application management service is what you would need.
Leave your technology worries to us, and concentrate on serving your customers better. Your system will be running in top shape and all your minor changes and features will be implemented without any hiccups because we know what we do and we have done it a thousand times.