Are integrated cockpits worth the loss of adjustability?

It depends on your priorities. Integrated cockpits save 3-8 watts, look cleaner, and reduce cable clutter. If the stock dimensions fit you well, they're excellent. However, if you're between sizes, have unusual proportions, or anticipate changing your fit over time, the inability to swap stem length or bar width independently is a real limitation. Some manufacturers offer modular integration—separate bar and stem with hidden hardware—that provides aero benefits with more adjustability. Consider this a key factor in your purchase decision.