I lean toward the Sewer Solution. Actually I carry it and the standard hose with my built-in No Fuss Flush.
I was always concerned about the ability of the SS to `flush' out the leftovers once the initial whoosh when dumping was completed. A recent live test showed that the SS might do a better job of flushing than the standard with a flushing system. It calls for flushing, then back flushing than flushing again and repeat. The clear connections show when the water is clear.
I, personally, am not a fan of `walking' the hose to the sewer after flushing.