I tried it over Xmas - lovely looking bottle, but like you I was put off by some of the non-Kosher ingredients (nowt much wrong IMO with hop pellets mind - I know there's debate out thjere, but IME they're often fresher than ordinary whole hops; if they are unadulterated - just mashed up & compressed into pellets)
As to the beer - I know wheaties are often easy drinking, this tasted sweetened, with some spice and oranginess; not awful, but IMO not as good as Hoegaarden.
To the OP & other Kolsch-seekers - I didn't spot the tap, but I did spot a poster tonight in Liverpool's uber-beer pub, (Ship&Mitre, Dale Street) - says they are now stocking Fruh Kolsch. I know Meantime had briefly imported it, I don't think they still do, but I pressomeone does!
cheers Mike McG