special case of mikrotik

i have mikrotik rb411 with 19dbi antenna. i also have edimax ew-7206apg access point/repeater with 7dbi omni antenna. i did not see any difference between edimax and mikrotik signal strenght. both of them have same signal strenght. i want to learn, what is special case of mikrotik ? i mean, what case makes miktorik to special ? why i should buy or recommend to my friends mikrotik. sorry for my english thanks.

look here for features RotuerOS offers:
http://wiki.mikrotik.com/wiki/Manual:TOC

and ease of configuration. Also, if you go for MT to MT connection you can use features like NV2 on wireless to increase throughput of the link.

thanks for your answer. but im only interesting with signal strengh. what is difference between mikrotik and repeater/ap ?