I have prior experience in writing Blog Content & Product Review Writer. The first thing you need to consider is your audience. Is this something that only benefits you, or would you naturally recommend this product to a friend who matches your target audience? You can certainly review every product that comes your way, but make sure your products pass all three of these points:
They are something you want and can use;
Are of interest/use to your readers or desired audience; and
Fit the theme of your blog.
If not, your review seems too self-serving. For example, a blog on general parenting is going to have a wide selection of products to choose from. However, a blog about “green living with kids” will have a smaller selection of relevant products and services – only eco-friendly children’s items. A post on the latest tech gadget there won’t fly with that audience.