As I have noted in the past, I love both Conch Republic and Horizon. When doing Spiegel Dives, I tend to prefer Horizon from the standpoint that it's a shorter boat trip out to the Spiegel. When diving Conch, you must first start from the south only to go quite north from that location. Not a dealbreaker, but something to note.I'll be in FL in mid-July and giving Conch Republic a try for the first time. Hopefully at least one or two of the mooring balls are back in place by then. I would never hesitate to go with Horizon, however, since I have only had positive experiences with them on multiple trips to Largo.