Keep in mind, as I’ve muttered elsewhere, that the Mission is a reconstruction, so in ways it’s been made to look very pretty. But this is no bad thing, and I appreciate the effort done to make it both a place still used for its original purpose as a church and as a place of historical interest with its own aesthetic appeal. If you go on a weekend, Saturday rather than Sunday is a better day since church services, logically, take up most of the church time on Sunday.