I made the switch, from a ARC REF 3 preamp and highly modified BAT VK-75SE to a VAC Avatar Super (80 wpc). I won't lie and say the VAC sounds better, but it is simpilar (my wife can even play music now) and the sonics are 'in the ballpark'. I like the VAC much better than the Jeff Rowland Concentra II that I owned.
Other integrateds that I would love to hear are the new Pass Labs INT 150, Karan Acoustics KA-180, McIntosh MA2275, Ayon Audio Triton, GamuT DI 150, Accuphase E-550, Goldmund Telos 390, AMR AM-77, Krell KBI, VAC Phi Beta, to name a few.....
Happy hunting,
John