1.) How big is the community? Big enough that there will be people who you like less then others. Big enough that there are better and worse players. Not gigantic, however, meaning that really well known players are really well known players, they aren't just well known among certain circles. As Karyuu says, it can be nice. (or it can be mean)
2.) How good is the game? I believe the term is 'uber', especially if you can roleplay.
3.) Is there pvp? Some. There's a pvp room and dueling, but you should have a in character reason for doing either of those. If you don't know what I'm talking about, head ye over to the newbie forum and read the guides on roleplay.
4.) How good are the quests if any? There's over 100 quests, and they're fun, although the NPC system can be a little bit frustrating. Just a little bit. It takes a bit of learning, and once they get all the quests on the same wavelength, it should be easier (if they haven't done that already, of course).
5.) How many differant monsters are there? A good number, although not a huge number. The worst monsters, of course, are the other players themselves when they play evil characters

6.) Are there any bosses? Well.... Laanx, the server, is the uber boss. You manage to crash him (not through exploiting a bug), and you "win". Of course, he crashes often enough that there's lots of "winners" and nobody ever loses... Talad is another boss, and the head honcho. Each of the Devs, of course, can be a boss in their own right, and so can most gms. Of course, they have to have set themselves up as a boss, and you have to have an IC reason for killing them

7.) Is it group involving? Very much so, if you don't want it to be boring.
8.) How big is the map? There's numerous areas, and right now it has very little of the final thing completed and takes ~15 minutes to get from one side to the other (BD to Oja or back, and iirc) without extra potions for energy (allows running, which is how most people get around).
9.) Is there lots to do? Yes. Infact, if your imagination is good, the number of things you can do reaches towards infinity, as long as you stay within the settings. And much more on the way as far as the actual game goes, too.
10.) Are there proffesions? If so how many? No specific professions, although many choose to take up one or another, such as metallurgy or the like. Mining is a favorite too.
11.) How many classes? No specific "classes", each person has equal opportunity for any given skill.
12.) How many races? Read the guide, as I can't remember the number off the top of my head and that's good knowledge to have anyways... hmm.... *counts off on his fingers* 12 or so, if I'm not missing anything...