For a newer boat, a leaking roof is unacceptable. Same with inop freezer and dinghy problems.
Insufficient reply is reason enough to disclose charter company and boat name.
Do tell.

Re power issues, we’ve chartered in the Med three times, and knew in advance of 220v power and points requirements. My wife has 220v hair dryer and straightening devices and power plug adapters accordingly. You can buy on Amazon, too bad that you weren’t aware in advance. Some of the newer boats also have USB ports with built in transformers for iPhones, etc.