Flybarless for beginners? Nice, but you might need help...

I can only speak about Mikado Vbar/VStabi and Gyrobot (both I have used or personally know people using extensively)

For Flying
Flybarless is better at:

1. Inverted flying
2. Flying in strong winds
3. Flying high speeds
4. Flipping and rolling
5. More power/flight time (more efficient by at least 10%)

(Assuming you have a properly installed flybarless system) Flybarless is better cause it's definitely more stable that a heli with flybar and tends to roll and flip on axis better (i.e. doesn't drift away as much).

For Crash Repairs and Heli Maintenance
Flybarless saves time and money because you don't need to (remove), buy and tune:

1. Flybar
2. Flybar paddles
3. Flybar seesaw
4. 2 more pairs of linkages that connect your blades to the flybar system.

I hate adjusting linkages!!! Flybar heads has 6 linkages, flybarless has only 2 - yay!

For Installation and Testing:
Flybarless systems are easy, but only if you like working with electronics (and maybe PCs/Laptops) to set it up. You'll also have to have a sound understanding of these:

1. Gyros and Gyro Sensors
2. The Swashpate and how it affects your blades in flight

The new Mikado Vbar Homepage has a whole bunch of great videos to show you all you need. I made a Quick 20 Step Guide for Dummies here.

Less Time Repairing, More Time Flying
After the ground jumps up and grabs my heli (the only reason why I crash :P), on my Logo 600, it takes only 5 mins to setup the linkages and head again, for my Klone 50 with flybar, it can take 30 minutes or more (depending how much I have to wrestle with the bent flybar that can't come out) So if you're a busy guy with cash to invest in a Vbar or Gyrobot, it kinda makes sense...

The Piro Question
Some people (including me!) have noted that flybarless systems feels harder to nail pirouetting maneuvers (e.g. Piro Flips) But since I switched to VBar V4.0, it seems alright now. I have seen others that were on the flybar get on VBar 4.0 and perform piro loops, flips and tic-tocs - no problemo.

Make Your Heli Fly - The Way You Want It
Flybarless systems make it easier to tweak and tune the cyclic response and collective pitch of you heli. Make your collectively really pop or have a blazing fast roll rate. On the other hand, you can make it as gentle as a baby's ass (ok, bad analogy), simply adjust the numbers on the screen! For flybar heads, you have to adjust mixing ratios (mechanically) and try different types of costly paddles - bleah!

A New Hope
Since 2009, with the Mikado VBar V4.0, and Gyrobot, Flybarless systems are much easier to setup. With the VBar, you'll have to like to use a PC/Laptop to set it up (and you can save different setups to a file for backup or share with others). The Gyrobot comes with it's own programming box, so in that sense it's easier to setup and (PC setup is optional).

Summary
For most beginners (heli geniuses excluded), get a dude that knows how to setup and fly flybarless systems to help you. For the pros and experienced guys, it's exciting to try flybarless, for it is a whole new experience...

For additional notes on the battle between Flybar and Flybarless you can take a look at this and here for more of my notes on flybarless.

Hope this helps!