Victron is extremely good equipment, and I'd take it over pretty much everything mentioned here. The thing you have to understand is that it isn't a separate inverter and charger in the same chassis. It's more of a T shaped configuration, with the power coming in on the left of the tee, the power going out on the right of the tee, and a transformer going down to the battery at the bottom. The power electronics can then either push power from the battery into the AC connection (inverting) or let power from the AC connection into the battery (charging function) and it can switch back and forth on the fly. By definition with this design, the input voltage has to match the output voltage.
What this means is that you can do things like limit your power input to 20A, and still drive 30A loads on your output, as the inverter/charger will use the battery to boost the output when needed, and do so instantaneously. For an example, I can visit my friend's dock and plug in. It's on the end of a very long, crappy power connection; if I draw more than about 12A the voltage drops too low. So I just set the current limit to 10A, and even if my hot water tank is on its heating cycle, I can still run my little induction coocktop without tripping everything out.
For your situation, I woudl strongly consider getting an isoaltion transformer that can also do the voltage conversion if you really need that. First, isolation transformers are good to have on a boat as they are the best way to protect your underwater metal, and then they also generally are dual tapped, so can deal with the 230 vs 115v issues.
But yeah, I highly recommend going with the victron ecosystem, especially on a boat. I have a fully integrated system (MPPTs, Inverter/charger, third party BMS, Cerbo) and it all works really well together. It also gives me a wealth of data on what my boat is doing at any given time, even when I'm half way around the world. Someone kicks my shorepower plug out? I get an email, and can ask the marina to check on it. My bilge is running a little high? I can turn on on my bilge pump remotely if I have to. It's beautiful kit.
