All who say that the trial mechs are terrible are entitled to their own opinions, but it is my opinion that this set of trial mechs is adequate. Let's go up the list shall we?
Jenner: Yes, it has 4 medium lasers and SRM 4. If we were in the Inner Sphere any whining about getting this mech, you would get you Dispossessed. Ugly duck does not manage heat well. Why? Perhaps firing all 4 Mediums into someone is not good for sustained fire no? You over heat and shut down, then some Atlas drops a Gauss shot into your leg or cockpit. I have run the Jenner, and through trial and error, I.E., learning how to run it, only use 2 lasers at a time and if you want to tie in the SRM 4, do so sparingly. Dip into the action, run away and cool off, that's how to play with this.
Awesome: This is one of the best Awesomes that I have piloted after the update. The PPCs rip through armor, the Streaks are sexy, and the medium pulse laser and small will fire while the other weapons are recharging/reloading. Get over the fact that it has your Aunts hips and the width of an Atlas. This mech decimates, at Medium to Long range. When you get into slugging matches with this, try to stay on the outskirts, otherwise, you will get flanked and someone will throw SRMS into your back.
Laserback (I mean Hunchback): I can't deny it, this big boy is a heat hog. Stop attempting to core mechs with multiple grouped laser shots. There have been countless forum posts about chain firing weapons, use them. You can maybe fire once or twice with your grouped lasers, but you are a support mech, and you don't need to be sticking your right torso where it belongs.....Like near the barrel of my LBX cannon...... Oh another thing, when fleeing the battlefield because you did not manage your heat correctly and are runnin back to Ma's skirts, we are ripping your back armor to scrap metal. Medium ranger brawler, just watch out for the mech that stumbles into your line of vision and give him a light show.
Capahrat: I can't spell this thing at all. What ever, you know what I mean, It's a hodgepoge mech that often was called "Frankenstein", by the Federated COmmonwealth troopers. This guy doesn't know what to do. You got a PPC, an Ac/10, and maybe 2-3 medium lasers. I'm forgetting. It's not bad. The heat is decent for that mech, but the only issue I have is the lack of A/C ammo. The armor is maxed on it for what I can recall, and the mech moves at a good clip, stay close to long range, if people move in on you, give them a blast from your A/C. Only flaw with this mech is all the good stuff is in the right side torso. My recommendation is to use that AC quick so it doesn't explode on you.
In conclusion, the trial mechs are not hard to use, but some care must be executed when piloting them. I'm regretful that there is not a better write up on the Mechwarrior/Battletech universe. Let me break it down for the various Sci-Fi people that get into mechwarrior and have issues....
1. THIS IS NOT ARMORED CORE. The mechs in this weigh 20-100 tons, the cannot move that fast unless you sink serious money into them. Also, the pilot may be wired into the mech, but they have not perfected jumpjet technology to the expertise of Armored Core. If you don't like the game, go back to Armored Core V.
2. THIS IS NOT GUNDAM Wing/Destinity/00/ Etc.. See previous reference. Also the gundams weigh like 7-20 tons. Atlas would MURDER Heavyarms. FYI
3. As much as I wish, THIS IS NOT BIG O: I had to say it. I would love to pin down a Jenner and just punish the hell out of it....
http://youtu.be/GlOoIMd9524
4. If you are coming from Starwars...Well, welcome. No Jedi mind tricks on Hunchback pilots.... Wait, that is the Awesome I was looking for....
5. Star Trek... Well, Live long and Kill much.
That's all I got for now, go ahead and burn me, I GOT A/C AND DOUBLE HEATSINKS!