Not bad! I thought I'd get Salvage really slowly but after upgrading the drop chance it became a non-issue. With enough upgrades it's possible to beat the simulation with the beginner ship and ability. Currently grinding Salvage to unlock the rest of them.
My only peeve is that there are so many passive skills that it's hard to get the one you want right away, but I guess the player can just choose more "Passive Skill" zones or use the shop.
Thanks and keep up the good work!