I used All-Glass/Aqueon/Oceanic, all of which are the same company. The customer service is great and I have never had any issues with them.
Marineland has had some quality issues lately with one of their products, and their unwillingness to admit that there is a serious QC issue makes me feel like they are trying to mislead instead of just admitting that they screwed up and recalling the product.
Marineland has had some quality issues lately with one of their products, and their unwillingness to admit that there is a serious QC issue makes me feel like they are trying to mislead instead of just admitting that they screwed up and recalling the product.