Sounds about right to me for 2 lamb 3 stages, bit of a mine field with vacs cheap in balanced lambs that make a racket, copies that look identical, lambs made in Italy that aren't as good as the ones made in Mexico. Suppose you pays your money you takes your chance these days.
Just bought a new steam pro today with the 150psi induction pump, going to use the 500 psi ninja for commercial stuff, sick of leaks and pump problems (pump was only new in September) now leaking, had a leak from the pressure gauge, leak from the regulator, leak from a hose to the pump, seem to have had more leaks than Wales then within a week both vacs go. Pi..ed me of big time spending a fortune on repairs and moving work so decided to go with a more straight forward machine and bought a new steam pro heard great things about there reliability, when I was dropping machine off engineer showed me the line of mytee, perfect heat, storm machines all with big pumps that are leaking said they are constantly seeing 500psi Machines with pump issues.
Used it today and was great quite and plenty of vac, going to use it with my v2 steam mate tomorrow.
Good size as well perfect for domestic jobs.
John