Very is probably a stretch. Treat it as you would CA glue or enamel thinners. Don't drink it, wear gloves if you can't handle it without getting it on you, ventilation is good.

Once cured it is just plastic. One primed it is painted plastic and absolutely innocuous.

Perhaps something to watch for when receiving unpainted and still supported models though, as there may be some 'live' resin on the lower surfaces and inside. A second cleaning and curing of the 'obscured' areas is probably a good idea, if for no other reasons than for durability and a resiliant primer coating.