The Bees go to Luton on Saturday.
Frank said: "I like Rob Edwards and everything about the club I really like and admire. He's done a top job together with his coaching staff and the players - very impressive with most likely the lowest budget (in the Premier League).
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"They've been impressive in terms of how they're hanging in games and scoring goals in the last 15 minutes of games. It's hugely impressive that they're capable of that. They make it difficult in every game for every single opponent.
"It will be a big battle in every way and, at home especially, they've been really good."