I had a very positive experience recently with Rocket Dollar and Solera National Bank. A time-sensitive deal required me to open a SDIRA, transfer my assets, and fund the investment within two weeks. A leading national SDIRA provider told me that there was insufficient time to do this; RD and Solera, however, made it happen! They were both accessible, responsive, and accommodating. Solera even sent a cashier's check overnight half-way across the country to get the deal done. I'd recommend both companies.
I concur that Solera National Bank is great to work with.