Hi...
I've done set naps with both my LO's & they have worked really well for us. However, I do agree that they don't work for every LO/family situation.
I started doing set naps when my LO's were around 8 mths old & had settled into a 2 nap routine. I always woke my LO's up at 7am if they weren't already awake.
I think at around your LO's age our routines were something like:
WU: By 7am (usually between 6.30/7am)
AM nap: 10am
PM nap: 2/2.30pm
BT: 7pm-ish
If you decide to do set naps then there is usually a few days of OT to start with whilst your LO gets used to a new routine but in my experience it has really helped 'set' my LO's body clocks so that they automatically got tired around the same time, regardless of WU. It also made our days a lot more consistent & predictable....
Good luck!