At $1,500/mo savings rate, it would take 46 months (3.83 years) to save up for your down payment (before closing costs/lending fees, but I'm not sure if those are rolled into your mortgage)
This would leave you with a rough monthly payment (mortgage + interest + takes + insurance + HOA fees) of $1.8k-$2k (assuming 30 year mortgage at 4% interest rate)
$100k gross is roughly $76k net (before any 401k/IRA contributions)
$1.8k/mo for your mortgage * 12 months = $21.6k before any cable/water/electric/lawn/pool bills/repairs
$4.5k/mo net income remaining after your house for food, cars, insurance, etc.
You said $1.5k/mo savings which means $3k/mo for food, cars, insurance, travel, 401k contributions, repairs, going out, etc.
I guess it is do-able. $3k/mo for 2 people does not sound terrible in the slightest.