I've rewatched it recently. The first two seasons were absolutely fantastic. Great humor, incredible attractive female characters, crazy gadgets, tailored for smarter audience. For some reason, 3rd season took a nosedive - actresses went from 10 to 3, and the target audience's IQ from 120 to 60... Fourth season was okay, although rather short.
Overall, very enjoyable experience (except for the 3rd season).
Overall, very enjoyable experience (except for the 3rd season).