Actually, most RVers end up with one of 2 brands: Progressive or Surge Guard. Then you decide if you want portable or fixed (hardwired) then if you need 30amp or 50 amp.
All of them do what is needed, but Progressive has a lifetime warranty, I believe. And if you hardwire it, you can add a remote monitor to place near your power controls inside.
2016 Tiffin 40 QBH
2015 38RSSA, traded
2005 TK3 #1869, 10 yrs of memories,
2017 F450 KR--one more Ford is it
2009 F450 4x4-died; 2010 F450-retired