There's little point in discussing a brand that next to no one knows about, struggled to sell in the USA, from company that is not interested in making many units (about 1,500 in total over about 15 years) because it's not their main business.
That said, not having grandiose hifi aspirations, I very happily used a RCM Sensor2 Mk2 for the last three years, only recently taking it out for a replacement that has two inputs and fully balanced inputs with XLR connections and all the controls on the front. I tried the balanced input option on the RCM with a cable wired per their instructions, but it was noisier than unbalanced.
I think I heard the Big Phono at my dealer once. It is very big, I'd need a bigger house and higher aspirations.