Better than PQ2? That doesn't take all that much. :-\
From what I've played on the DS it's quite fun. The specialized bigger units need to be bought piecemeal and can die in battle, which is a pain IMHO.
I've found that the outcome of battles is hugely affected by luck.
Game mechanics are as follows:
spoiler (click to show/hide)
You control an army. You have unlimited access to three kinds of small units and a limited amount of medium and big units. You may take two types of medium and one type of big unit into battle (out of a roster of 4/2), and every of these units can die.
These units are randomly distributed on a battlefield. This can really stop you dead right at the beginning if you're unlucky. Per turn you can take a limited amount of actions, usually three. If you're good at chaining together units you get more actions. After you run out of actions your enemy starts its turn. You can take as much time as you want.
Actions:
1) You can pick up one unit that has no more units behind them (=further away from the enemy/closer to your commander) and drop it on any of the rows of your army, again "from behind". The battlefield is rather small, so do expect to be forced to juggle units around quite often.
2) You can kill any one unit anywhere on your field. The units behind it will advance to fill the hole and, if correctly aligned, activate.
3) You can replenish your army up to a certain limit. New reinforcements will be refilled into this pool when you kill your own units or have them perish in a fight. The reinforcements arrive entirely randomly "from behind" again. This is an essential move, but it can fuck you up proper if you're unlucky.
Three normal units of the same colour and type in a line will activate. If the line is horizontal you'll get a wall that'll instantly consume the units and spawn in front of your army. If the units are vertically aligned they'll start glowing, get transported to the frontline and become immobile. After x turns they will attack. Putting two small units of the same colour behind a medium-sized unit of the correct colour will consume the smaller units and move the medium activated unit to the front, again charging for a few turns before it attacks. The biggest units need four standard units behind them before they activate (again, moving to the front and charging). They take up two rows.
A normal unactivated small unit is worth one life, and bigger units and walls have more. Activated units usually have a boosted life force too.
Units that have finished charging attack by running in a straight line along their row towards the enemy. Each enemy they run into substracts their own life force and if the attackers have at least that much life force it perishes. If the attacker manages to demolish all defenders in its row it'll explode in the face of the commander, dealing damage by how much life force it has left. If several units come out of charging at the same time they link up for a noticeable attack (=life force) boost.
You can equip one artefact that change the flow (e.g. reinforcements not costing you one action) or make certain units behave differently, like having activated medium units heal your commander.
Speaking of which, these commanders charge their own single spacial attack over time. You can activate these once they've stored enough energy at any one time on your turn.
Their race determines the race of your army, and thus strongly affects stats like life force of units or special abilites. E.g. Elves have regenerating walls. As long as they're not reduced to 0 HP they'll regain 2 HP per turn. The medium unit that looks like a stag will jump over one wall when it's attacking. Their biggest unit was a dragon, IIRC. It left poison in the wake of its attack that damages units that get dropped there for a while. The elf commander you get at the beginning can execute an arrow attack that has considerable strength and can be fired into any enemy row of your choice, usually clearing it out and scratching the other commander up.
There's a story and a modestly open map to run around on. You run around unlocking medium and big units, then making money and resources, and finally buying medium and big units. There are puzzle challenges, and quests to take out certain characters on the map.
I still prefer other puzzlers, to be honest. It's quite fun, but way too random with initial setup and reinforcements - at least for my taste. There are optional puzzle segments where you have one turn to clear all enemies which are quite nice. The weeaboo art is kind of unnerving considering the franchise, but can be ignored if you're not a total hardass. Story & Music didn't leave a lasting impression. AI works quite well.