First of all, if you need to apply a "Standard Configuration" to several different RBs, the best way is always to make a STANDARD-SETUP-SCRIPT(or flash).
The easiest way to make it if you aren't used to scripts, is probably to do an export of a router you have configured like you want it, and study/edit it in notepad.(Remember to remove all MAC adresses!!!).
For CPEs/CPE SOHOs/"Other volume deployment equipment" I always use pre-made scripts. If not you'll have a lot of time/work wasted on configuration!
Sometimes if I need to move a config quickly from a RB to another IDENTICAL-type of RB and haven't got a pre-made script for this move, I just do a backup and put it on the new RB.
BUT then you have to manually setup WIRELESS(and if applicable reassign Virtual APs to a master interface. Remember change MAC.), and check in winbox that bridgeports, etherports, dhcp and firewall rules etc. have been assigned the right ports etc.
This may sound as much work, but this way you get the config quickly moved and just need to check the values mentioned.
All global settings like password/users and graphing, sntp, watchdog etc. are normally transfered and do not need to be set new. This procedure is mostly to replace broken/old APs or other Events that are more infrequent.
This way you also usually avoid the "MAC-Transfer problem" that used to be a problem before with export from a RB device to another.(With export, if you didn't manually remove the MAC adresses from the exported file afterwards, you could end up with two RBs having the same MAC addresses interfaces.)
Although be aware that Viritual APs keep their MACs also with a "Backup-move", so they should also be modified manually.
Feel free to correct me if I am wrong!
A question at the end about "Export Compact"-feature, haven't used it much yet, are the MAC addresses removed in compact export files? Should maybe think so since they could be considered a "Default-setting" on the RB???!
Think I need to study a compact export a bit and check it out.