Nice game bad mechanics ( since you asked for feedback)
Nice game: needless to say, lots of good ideas, various quests, campaign, things to do and lovely graphics, stories
bad mechanics: this game cannot be played unless you are investing lots of money. Without money it gets boring after 2 weeks (!). Why ? Because there is nothing new that could be achieved within a reasonable amount of time. These are the reasons:
1. Reaching campaign level 13-10 means you have to fight lvl 230 UR and SR team or lvl 230 Ella in gentlemen club, or lvl13 waterfall which starts with 99k team ( ~lvl 220), that way there is no way you can do a streak of 5 or 10 wins.
2. Leveling your heroes to 220 is doable, but beyond that they have to be SSR. If you have a SR hero like ashe, you need lvl 220 ashe (10 stars), then promote to SSR, then you need another SSR ashe ( with 3 stars, lol, tell me how to get that) and another SSR shark (doable) and 1000 purple dust. then you can level Ashe to 11 stars and up to level 240. Practically, the money and the sharks needed is too much. You want a whole team on 240 ? you do this 6 times. Or you have enough sharks for SSR or UR, which is practically impossible. I bet beyond 240, the ennemies will be stronger, and your team is useless, and you have to re-invest lots of money again.
3. The 1000s of normal sharks turns out to be useless after 2 weeks. So obviously spawning them in summon, or giving them at a price is a joke.
4. After 2 weeks, all the welcome packages, or also the upgrade packages with 1 to 3 SSR heroes look worthless for the price of Euro10. How much money do you need to level one SSR that way to lvl 240 ?
5.Sure people has to make a living, and a f2p game encourages players to spend money. But in good games, the money help speeding up what ever would be otherwise possible with the time. If one can foresee that there is nothing new achievable within 2 weeks, there might be no point of continuing to play.
6. btw, the academy is useless, the heroes get the level but not the stats. For example the speed is miserable, such heroes are just "food" for ennemies: If the enemies can do 3 consecutives skill shots to many objectives without dying, chances are half of your team is wiped out.
7. If you gets 4 UR sharks of the same hero, you are happy, aren't you ? Well, this means you get a 6-star hero, thats it. Remember, lvl 220 is a 10 star hero. In other words, useless: because after 2 weeks, you fight vs lvl 230 UR heroes, with all the stats and buffs...
8. Summarizing for new players:
IF you have a lvl 220 team, you have approximatively 100K strenght, this is where you get stuck:
Waterfall:lvl 10, only way to get a 20+ win streaks, lvl 11,12,13 you wont be able to get 5+ win streaks.
Journey: lvl 20 is doable many times, meaning you should not achieve lvl 22, otherwise you end up coming in and not being able to achieve any map at that level at all. Unless you spend money to buy revival drinks.
Campaign: 13-10: squad of 101K UR and SSR at level 223. Unkillable.
Pleasure dam: Ella, lvl 230 in gentlemen club, also unkillable, meaning you completed 2 chapters at most.
Oblivion: The most I achieved was when ennemies are at level 140, and this 38 times to complete the map.... ( I think map 13)
Arena: Veteran (12 tickets each day, 500 pts: achievable). If you happen to buy tickets and achieve 1000 points, you will be disappointed, because it does not give you the assassin league. I don't know what needs to be additionally done, besides having more than 1000 points. Why change the system ?
Summon: its a joke, anything less than SSR is useless, just to be sacrified to level up worthy heroes ( SSR and above). I suspect that reaching certain level one will realize that also SSR heroes are worthless.... Meaning, you only needs 2 weeks to know that the normal summoning stones (green) are worthless. And the Epic summoner stone sometimes gives you R Heroes ^^.
Anyway, there are lots of love and effort in providing the game, so I wish the project team with lots of success.