Decent in 1980, perhaps! It's dreadfully slow, barely ultrasonic; the control scheme is undefined (you have an "oscillator" block with apparently some means of current sense), the behavior is hysteretic so not only is the ripple massive from the low operating frequency, but it's several times worse due to pulse skipping and chaotic limit cycles; shall I continue?
All of the alternatives listed are modern CMOS devices, with operating frequencies up to a few MHz, and excellent stability, efficiency, and current limit performance. You will literally save more on capacitors and inductor alone than the chip cost.
Tim