This is a great country cottage right on the lake. It's not a newly built Hilton resort so there are some minor flaws, but it's a great place for a family to hang out. My brother and I brought our families together here for a short 3-day visit and it served us well.
The location is the KEY element for this house. Its location right on the shoreline of Lake Ontario was very relaxing (the shoreline here consists of large rocks for erosion control. There's a small pebble beach just down the street a bit, but we didn't visit that.). Cooking up some hot dogs & smores over the fire pit and hanging together around the campfire was the highlight of the trip for me and the lake background contributed to the ambiance. There's also a stack of board games inside for family fun.
The kitchen is well-appointed and updated. The two bathrooms are updated. Water pressure for the 2nd floor shower was disappointing, but likely due to low pressure in the area and/or small water lines. The queen beds are downstairs in the plainer bedrooms and the doubles are upstairs in the nicer ones (with views of the lake). Given that most adults don't want to sleep double in a double bed, it'd be nice to have the queens upstairs, but we didn't spend any time in the bedrooms other than sleeping, anyway (so the kids got the nicer rooms and the adults got the nicer beds).
The location is very rural and very quiet. As a surprise bonus, there are quite a few Amish farms in the area, so it was interesting to see them out and about. We happened to see a couple 4-horse teams hooked up to work the land. There are a few vegetable stands in the area with some gorgeous seasonal fruits & veggies (strawberries, tomatoes, sugar peas and another pea (I forget the name) were in season for us).
Niagara Falls and Fort Niagara (an interesting visit if you like history at all) are a reasonable drive away. The Erie Canal is very close. Probably some more stuff, but we didn't have time.
Lynn is a good, organized host with a multi-page PDF to send you before your arrival. No problems with communication.
Overall, if you're looking for a peaceful place where a family can hang out and spend time together, this may be a great solution for you.