Like many sequels, this followup to "The House of Quark" does not match the humor of the original. Yeah, there are some laughs and it's not a bad story, but the novelty of a Klingon-Ferengi relationship (as well as its plausibility) is much more strained this time around. Of course, the sudden romance between Jadzia and Worf, in the making since the middle of season 4, was probably the most interesting development the latter character experienced since season 5 of TNG.
In some ways, it's the counterpart relationship - that between Miles and Major Kira - that rings more true, and . Some people have suggested that it's out of character for Miles to consider cheating on his wife, but I think it just showcases the very real humanity of characters on this show.