My goal is to bring the sonics of our 150SE SS power amp, combined with a good tube preamp design, in an integrated amp package of conservative size (standard width piece, but not nearly as much space as separate amp and preamp). It will also include phono and headphone features, making for a high performance system in one box. You only need add speakers, digital source and turntable for vinyl.
The sonic goal will be no compromise, whilst saving space and overall cost over separates. I like an amp with good control and neutral presentation, combined with the 3-dimensional imaging and presentation of tubes. A hybrid integrated, done well, should achieve all of these goals.