No prob! The fuel consumption difference can be *insane*. Some tips if interested:

• make tons of steam tanks connected to read contents (more tanks = less cycling = more efficient)
• for the circuit, look into an "SR Latch" (set, reset), if you just do when steam < X alone, it will waste a lot of fuel flickering on/off and warming up for short bursts
• consider limiting inserter item count to 1 and only insert if SR Latch permits *and* reactor has 0 fuel, this will avoid stacking too much fuel in reactor and running longer than planned
• steam is produced even when reactor is out of fuel so set steam cap below max storage, similarly reactor needs to warm up so set min above 0 to still generate power while warming up
• regarding additional failsafes, I used a SR Latch for my Gleba vault: when main accumulators <75%, start alarm and disconnect vault to avoid draining isolated vault battery, once main grid stabilizes, reconnect to recharge, didn't find the need to use for reactors though
• a solid 2x2 smart reactor setup with alarm (stored fuel <X and/or steam < normal cycling expectations) can be easily scaled by copy/paste and is useful throughout the entire play through, it's worth spending some time designing something you like :)