We’ve always urged a healthy amount of caution when it comes to upgrading operating systems—especially in business environments. iOS 7, Apple’s latest smartphone and tablet operating system, is a case in point.

Don’t get us wrong—we think iOS 7 will be great for a lot of users. It’s the most significant change to iOS since, well, iOS’s beginnings with the release of the original iPhone. Apple has changed everything from the lock screen to the icons to the way the pre-loaded apps, like Safari and Mail, look and work. Plus, there are new features like a handy “Control Center” accessed by swiping upward from any screen, and multitasking looks completely different—much more like the “cards” in the old webOS interface.

True, the basics of using iOS are the same; all your apps still appear as tiles on your home screen, you still control all your configurations in “Settings,” the App Store is still the App Store, etc. Thankfully, Apple’s redesign efforts did involve minimizing the learning curve for existing users.

But that doesn’t mean there’s no learning curve at all. Imagine upgrading your iPad to iOS 7 right before heading into an important meeting, only to find that you’re not quite sure how to navigate the new Mail app and, thus, are unable to access the information you need in a timely manner.

That’s why we strongly suggest waiting to upgrade your iPhone or iPad until you have at least two hours to get used to using iOS 7. Ideally, we’d suggest upgrading from a previous version of iOS when you’re off the clock and have some down time just to play around with the new interface. Or, better yet, see if a friend or family member has a device running iOS 7 and play around on theirs for a bit to see if you want to upgrade in the first place. The bottom line is that it’s always good to allow time to experience a new OS before taking the upgrade plunge.

Again, we’re generally impressed with iOS 7, but maintaining productivity is more important than immediately going for flashy new interfaces, at least in the business world.