Yes, and I am happy.

Life is particularly better for the C and C++ programmer. Valgrind's primary platform is Linux. For many years Mac owners were stuck with a horribly out of date and malfunctioning GCC, and even now with clang there are problems (the clang in xcode 5.0 has some horrible miscompiling bugs which were reported months before release).

Is everything perfect in Linux? No. But overall I find it an improvement. The only app I miss is keynote, OpenOffice is a poor substitute.