yes like with every coin, but the difference to as example Monero or DuckNote is, that this two other mentioned coins have in contrast to quazarcoin a extreme emission curve, that means the train with this two is for miners already gone, while QuazarCoin has still its more Bitcoin like emission curve and it is actually extreme cheap and has a low rate hash-rate: it is extremely profitable to mine if we consider that the price will raise.
QuazarCoin fair & honest

eager to test the new GUI-wallet, is there a linux version?

PS: don't forget the Bittrex market which is in danger of delisting, there should happen some trades (we need 0.1 BTC average for 7days untill 22.August)