Perfect!  I have had three homes with in-ground pools, with spas.  This is better for many reasons:
1.  Temperature control is even and precise.  Insulated tub holds heat very well.
2.  Jets are more numerous and adjustable voracity at the twist of a knob.
3.  Size is perfect for 4 persons (spacious), or 4 adults and 2 kids.  Is a "push" for 6 adults as two of the seats are higher than the other 4.
4. Easy to jump in anytime--no waiting, no adjusting valves, etc.
5. Surprisingly economical to operate.  So far, outside temps have been moderate and electricity consumption is up slightly.  This may change when colder weather arrives.
6.  Delivery perfect--on time, careful, helpful.
7.  "Installation" quick and easy.  Place where desired (2 can lift, 1 can scoot it) Take off plastic wrap, fill with water, plug in.  
8.  No problems at all, large or small.
As I said--Perfect.