The Blue Circle CS is very new; but based on Gilberts other offerings, I am confident it will be nice.
Other integrated amps to consider in that range is the Audio Refinement Complete; and the Creek 4340R or 4340R Mk2.
The CS is not remote capable I believe, if that matters. The "R" on the Creek denotes it has the optional remote. The Complete's remote is also optional.
The Audio Refinement Complete will be the most "tube like".