Not really. Never tried BackupPC, and haven’t used urBackup since ages (only on Windows).
I think to recall you’d to fine tune urBackup network settings as the first backups took long time and many network resources (depending on the type of backup). It is client-server backup model, whereas BackupPC doesn’t need to install anything on the client, if I’m not wrong.
I think @Hunv, @flatspin and @stephdl can give more reliable opinions. Also take a look at: