dmmark,
Thanks for the reply. I believe that RM gives me more freedom.
For example, I was looking at the documents about the Thunderstick ROM. I especially liked the 5 button Navigation Bar. So, while I was in a meeting, I used RM to download ThunderStick, backup using Nandroid, and flash ThunderStick. I played around with ThunderStick for about 15 minutes in the meeting and decided I liked CM10 (Skank) better so I booted into recovery and restored the backup. My phone was back to the way it was when I entered the meeting.
All of this happened in less than 30 minutes. Without a PC involved.
I could never have done that the manual way.
Other than downloading or finding the rom, you can do all of that manually--particularly with TWRP, which is why I prefer it. Once the rom is downloaded it takes ~ 20 minutes from flashing to fully set up (including market restore).
Not only that, but you ensure several things:
(1) That the wipes are done
(2) That the /system partition is wiped and clean
(3) That you're flashing all of the files you need; what if you want to add in your favorite kernel? Simply add it to the queue or flash it after. What about a modification? Same thing.
(4) If you forget something, simply wipe and do it again.
Don't get me wrong, I completely understand the allure of such an application. However, saying it's faster or easier--particularly with the advent of TWRP--is not necessarily accurate IMHO. Once you get down the basics of flashing (see my dirty v. clean flashing/wiping stuff in the Skank thread and in the Kraken guide) it literally becomes an exercise in muscle memory

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Now, where ROM Manager (and GooManager Beta) really excel is having a multitude of roms at your finger tips. Ideally, if were to use CWM, I would use RM to update the rom download, then boot in and do it manually.
But like I said, if you know how to restore stuff, if you know how to go in and actually fix stuff--then you're the exception. But ROM Manager, aside from a button that says restore, does not offer that solution. It offers very limited options, and if you haven't ever used adb or fastboot or the custom recovery in its manual forms you will be stuck and in trouble sooner than later.
Lastly, while I'm not a computer science major or programmer, I do have years of experience with this, so my opinions are formed not necessarily from "expertise," but rather from my own misgivings, shortcomings, bricks, etc. If RM hadn't screwed me over in the past I probably would be a bigger fan. But alas, it has weaknesses.
Nice discussion btw

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