Yes. eSIMAdvice currently lists 64 ConnectMeGuru Costa Rica plans.
The lowest displayed ConnectMeGuru Costa Rica plan is Costa Rica · 500 MB · 1 day · 4G, at $1.15.
Costa Rica · 20 GB · 20 days · 4G is the current best-value match by displayed price per GB: $1.28/GB ($25.52 in total).
Yes. Eligible displayed prices already include the active ESIMTWEAKS10 coupon where the provider rule applies.