Getting new house batteries too. I am trying AGM. For the house batteries.
Switching from lead acid to AGM will be a very nice upgrade. Your batteries will never boil over, you will never have to add water to them, your battery terminals will always be clean, and you'll never have to pull out your tray except to replace the batteries.... when it comes time again.
If you have 12V lead acid batteries today and switch to 6V AGM batteries, now that is a much more dramatic improvement. Not just the benefits I mentioned going to AGM, but your batteries will charge evenly, provide more hours of power, drain evenly, and will provide at least twice as many years of service.
Regardless if 12V or 6V, when switching from lead acid to AGM, make sure the setting on your on-board charger is changed to AGM technology because if you don't, things will go wrong and you won't know why. Changing the setting should be clearly covered in your on-board charger owner/operation manual. Don't trust the technician. Do it yourself so you know it was done. It should be as easy as flipping a switch or swapping a little jumper which will take all of about 5-10 seconds.