I bought a Hughes Autoformer 30A portable for use with our 2016 ERA 70A. Think it's this one:
I also bought the locking cable, sort of like a bicycle locking cable with a keyed lock. If the pedestal has a hole / slot for a cable I can lock it to it. I'm pretty sure it won't stop someone that's determined and has a pair of bolt cutters, but it will likely stop a crime of opportunity.
It has a Bluetooth interface and you can connect to it from a phone / tablet and monitor the voltage and current draw.
One nice thing about some of the Hughes devices, including the one I bought, is they have a user-replaceable surge module. So if the surge module is toasted, you can order another one for $35 and have a working unit again. Much cheaper than buying an entire new unit. I've been tempted to buy one and have it on hand when we are traveling so I can replace it if necessary, but we already have a spare (SurgeGuard) surge protector onboard. If we didn't, I'd buy the module and keep it onboard.
I purchased our Hughes Autoformer almost exactly 2 years ago, and so far haven't had any issues with it.
BTW, one thing I always do is test the pedestal power with a meter prior to plugging the surge suppressor into it.
I like the Klein Tools RT250 receptacle tester for checking power. I plug it into the 110V receptacle, and also into the 30A receptacle with an adapter.