Received new CDs today, and am currently listening to the Mozart quintets played by the Amadeus Q on DG. They have more appropriate character than Grumiaux (who I find bland), which is why I bought this set, but they are too often too fast in the slow mvts for my taste. I guess next up will be the old Fine Arts set (with Tursi on viola). $$$
Maybe I should try those. I found the Grumiaux to be too homogenous or blended--I'm aware that some prefer that. Emerson is like that in general too, though less bland. I see nothing all that wrong with the Griller but I'm sure there are better. I should probably try Quartetto Italiano, as I'm really affected by their Schubert; but Mozart and Schubert have different requirements so I might be disappointed.