The overall smoothness of these strings is beyond the price. I have been using them for nearly 6 months now (I play roughly +10 hours a week.), after having first tried the ECG24, which I found to 'thin' sounding and of which the light E-string broke after 4 days.
The ECG26 on the other hand are just right, and have been lasting to this day, with no audible change in sound. While they are rather heavy gauge, they don't 'feel' heavy when playing. They do on the otherhand sound exceedingly good, round and just jazzy all around.
Highly recommended!