Went back and forth on sizing for longer than I'd like to admit. Had a 1.5kW motor on a dust extraction unit that I wanted to run at variable speed — full speed was too loud for the space, half speed wasn't always enough. The options were either a new motor with built-in speed control or a VFD retrofit, and the VFD route made more sense cost-wise.
Landed on the 1.5kW single-phase output inverter from Inverter.com after comparing a handful of options. The 1.5kW rating matched the motor nameplate exactly, single-phase output worked with my existing motor without any rewiring, and the price wasn't painful. Setup took maybe an hour, including reading through the parameter guide — acceleration time, minimum frequency, that kind of thing. Nothing exotic.
Been running it for a few months. Motor runs quieter at the lower speeds I actually use day-to-day, and I haven't had any issues with the drive itself. For what it is — a straightforward single-phase VFD at a practical power rating — it does exactly what it's supposed to. If you're shopping in the 1–2kW range for a similar application, this one is worth looking at before you overcomplicate it.