"Pentium done right" in general sense. The core only needs 3,3V instead of 5V like the Pentium 60 or 66. Because of this, and the smaller production size, the heat output is a lot less. Also upgradeability is better as the socket 4 topped out at 66MHz (133MHz for expensive Overdrive chips) where normal socket 7 boards could go up to 133MHz for socket 5 systems.
Unfortunately the Pentium 75 only has a 50MHz front side bus which is a bit too narrow. It's faster brothers, at 90MHz and 100MHz, run noticeably faster because their FSB runs at 60MHz and 66MHz respectively. In the whole Pentium line-up it's clearly visible that 50MHz FSB parts fall behind 60MHz or faster FSB parts. It's no wonder that if you run a Pentium 150 at 3x50MHz FSB it will not be faster than a Pentium 133 (2x66MHz FSB) in overall performance. Try Doom for example; it will run with about 72FPS which is slower than the Pentium 120! Luckily the Pentium 150 uses a 60MHz bus 
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