I have sailed on the 4000 both the 4 cabin and the 3 cabin with owner's suite. The second trip I had to single hand a lot and with all of the lines leading to the helm it was manageable. My wife knows next to nothing about sailing but was great at picking up mooring balls and helping put on fenders for docking while I manned the helm. My 14 year old son helped with the lines at times but started getting seasick especially on our way to Anegada and the more exposed swells
The biggest issue you will have is raising the main. It is a real pain with the lazy jacks. If you have room, you can raise the main on the ball and get going. For the shorter trips I just used the jib and still was able to get 5-6 knots on a close reach to close hauled.
The three cabin version of the 4000 is awesome, your wife will love it. Very open and bright with lots of room. Your daughters will love it as well. Life lines all around and very stable. Please keep in mind that it has no great sailing qualities and 50 degrees to wind is as close as you can get with it being more comfortable 60-55 degs. For up wind sailing we just used the motor.
Any issue we had with the 4000 (there were a few) were quickly dealt with and didn't impact us at all. This is a great comfort for us first time bareboaters
If you can afford the more expensive Moorings pricing I highly recommend for a first time bareboat charterer. We used it for our first and second bareboat charter and didn't regret one thing. Next time we may branch out to other charter companies and other boats (would love to try a Lagoon 40 or 45 or a FP Helia)