is it good to do 3 days of lifting and HIIT on the 3 other days of the week?

say hypothetically something like: mon, wed, fri lift. tue, thu, sat, high intensity interval training. that way your metabolism will be boosted like everyday of the week. and is it okay to do say 25 minute cardio on most of the non HIIT days? i know that long cardio isn't the greatest for fat burning (which i want to do, but i'm not really 'fat' but wanna get a bit more lean) but i just tend to feel i need to do some kind of exercise and constant cardio a day to keep myself feeling good and healthy, etc. thanks!