Koh Samui is consistently well reviewed on multiple forums (like Erowid and Shroomery) in terms of both cultivation and usage. Effects include visual and bodily stimluation, feelings of euphoria and connection to those around you, and periods of deep philosophical thought.
Their physical characteristics exemplify why this strain is called "super strain". Thick, dense, and long white stalks, and beautiful golden to light yellow caps. KSSS often display a distinctly lighter coloration than other cubensis strains from the same geographic area. This strain is moderate potency, however has above average yield, resistance to contamination, and colonization speed.
Cap: 50+ mm in diameter, convex to broadly convex to plane at maturity. Reddish cinnamon brown maturing to golden brown to light yellow. Surface dry with pronounced and persistent remnants of universal veil on cap (spots). Flesh white soon bruising bluish green.
Stem: 125+ mm in length, yellowish white. Flesh bruising bluish green where injured. Persistent membranous annulus (ring) from partial veil that becomes dusted with purple brown spores at maturity.
Gills: Attachment adnate to adnexed. Grayish coloration in young fruit bodies becoming nearly black in maturity.
Spores: Dark purplish brown, subellipsoid on 4-spored basidia