I got to try 200ug this last weekend. I took the tabs at 6pm and didn't sleep the whole night, tertiary effects still present at 6am the next morning, yet I didn't feel tired (actually I felt quite energised). This was surprising to me as I normally have a fast metabolism, but the duration was in line with 12-14 hour LSD trips I've had in the past during which sleep is pretty much impossible.
My first thoughts are that this analogue is more forgiving than LSD. The come-up was an extremely gentle gradient towards the peak, there was no body load to speak of besides a general lack of bodily coordination and a feeling of leaving the body during the most powerful phase of the trip, as happens with normal acid at moderate to high doses.
Open-eye visuals were very pronounced - tracers extremely prevalent and colourful, moiré patterns and flowing/breathing in inanimate objects, however I didn't get a chance to investigate how deep the OEVs went. Eyes closed, a definite warm, almost amber glow to inner mental space and entoptic patterns that seemed to form the foregrounding framework of a more encompassing vision of semi-opaque, translucent intermeshing geometries. I remember thinking that a slightly higher dose would take these to a deeper dimension.
Music sounded phenomenal, there were also times when I 'was' the music, no longer recognising it as an object of experience from a subjective position. The effect was blissful, also however with hints that a further deepening would be possible.
Some self-reflections towards the end of the trip about life stage reviews, psychological dynamics, personal musings, all in the light of a deeply felt positive mood that had an empathic tinge and reminded me of MDMA.
I won't say there were any ecstatic revelations that left me trembling and shook to the core, pondering my existence on earth and my place in the cosmos, but I've also had poorly prepared acid trips like this, and the low-level insights (psychodynamic etc) definitely suggested the potential for this chemical to reach the samadhic heights of is ancestor. A very beautiful experience overall which I'm eager to repeat.