Sunleaves coco is just fine. My local store just started carrying the large 4 and 5kg bales of coco and i bought a couple last month and no problems. Just flush the shit out of it and you should be golden.
One thing i noticed, is that if you buy the 5kg bale, the mixed one. The coco is so full of coco fiber that it barely holds water at all, great if running a drip, but you may want to buy the finer coco for some better water retention.
You can get sunleaves in compressed bricks or bales and also loose in bags,chunks,or fine choir.Its fine as long as you rinse the hell out of it until your ph is were you want it.