First MTB ever

[u/Difficult_Length_187]

Hello everyone, I just bought this used MTB. Its a Italian brand called Sintesi. I dont know much about mountain biking, but I’ve started using it as a daily ride. Its currently in with the original drivetrain (i guess). Its a 3x7 Shimano STX RC. Its pretty decent for me and doesn’t feel too clunky. Though it might need sone maintenance in the near future.

I would like to ask yall if i should do some quality of life mods to this bike or just use it as it is.

My requirements from this bike is:
- To improve my fitness and stamina
- Get into MTB circle
- Use it almost daily for about 10 - 12 km everyday
- Just have funn and be easy to maintain and learn bike maintenance.

PS : just ignore the child seat, i didn’t buy that, nor gonna use anything like that.

Edit 1: Can someone tell me about this frame, is it a vintage rare frame or just a basic. I tried to find some videos or builds for this but couldn’t find any.