Worth saving? Yes. Worth putting money into? No.
I agree 100%. The bike is very entry level and, though I might be wrong, the wheels look to be steel, as opposed to alloy (alloy or aluminum rims are much preferred compared to steel rims).
To get decent ride quality, be prepared to spend a bit. Cables, tires, brake pads, full lubrication of all bearings (bottom bracket, head set and both wheel hubs). If you can't do the work yourself, be prepared to spend even more.
I would look for something of better
quality and my guess is that you can
find something much nicer with little effort and at reduced prices.