I'll vote for the RSST here, I love it, and it's still my full time vape. I find it very easy to set up and it give me great flavor and vapor. As for making mesh wicks I found that quite easy and straightforward. I roll up wicks for fun sometimes. The RSST has some very nice features, an insulated wick hole which makes coil heating happen from both ends at the same time, much more efficient, and the spring capture on the positive post is very nice, makes locking down the positive leg of your coil a snap, and the positive post is adjustable up and down, which is pretty nice for getting good contact with your mod. Also the tank isn't metal at the bottom so you don't have to worry about your wick grounding out on it.
My first RBA was an AGA-T2, and I would not recommend it for beginners, it's a cantankerous device and the thumbscrews on the positive are a hassle to deal with and they come loose quite easily. Also the flavor is lacking compared to the RSST. That said, it was a good teacher for building a genesis RBA, if you can handle an AGA-T2 you should be able to deal with anything.
There are those who cannot get a genny working right no matter what they do, and I'll never understand why. I never got that metallic taste some complain of and I find mesh quite easy to work with. Wrapping coils on a genny is pretty much a snap, but you have to make sure you work out the hot spots on the coil. This is best done on a dry wick before you put juice in the tank. I use a dental pick for this, and very gently nudge the coil loops while pulsing the coil until it's glowing uniformly top to bottom. You also have to oxidize your wick properly with a torch before rolling it up.
For the RSST wicks I start with a piece of 400 mesh, 3 in. x 1 3/8 in. Torch this well on both sides, do a thin fold-over on the end I'll be rolling toward, then use a straightned out heavy paper clip to get it started rolling up. PBusardo shows how to do this:
https://www.youtube.com/watch?v=jnuYJeoS6Fc
Watch how he makes his wick in this video, it's a good starter guide. I prefer to oxidize mine more than he does, but then he also uses the pulse method in which he oxidizes the wick with the coil after building.
Phil looked into genesis RBA's quite seriously and finally got it:
https://www.youtube.com/watch?v=1xmYklqnQ0M
There are some who never get comfortable with gennies, and happily for them there are many other options.