Can you explain what problems you have with the Hawkes Bay. I was about to purchase the Barcelona before I heard about "The One" 10k. That's pretty much kept everything on hold for me.
I have an OG Luxpower 12k that's powering my house with 20kwh of server rack batteries. But I have 75Kwh worth of auto grad batteries that max charge at 64.8v. I've been using a Samlex 4048 to charge and use those batteries but the Samlex has it's own limitations (60amp max charge, can't ac couple it's output e.t.c).
That's why I bought a Rosie when I saw a deal on it online was going to be buy the Barcelona sooner or later. Once I heard about "The One" I put off buying anything. So my Rosie's just been sitting in it's box. Doing nothing, lol.