The only drawbacks from my experience with the bottom ones are: bending down while finding what you need. Things can get disorganized quickly.
Here's what I found online:
Pros of Buying a Bottom Freezer Refrigerator
There is generally more storage in the bottom freezer
A bottom freezer is more convenient if you don’t use the freezer more often than the rest of the fridge
Bottom freezer refrigerators are more energy efficient. Since warm air rises, the top freezer refrigerator uses more power to keep the temperature cooler
The storage areas you use most often are at eye level; you can quickly see exactly what you have in the refrigerator
The fridge part often has different compartments with different temperatures for dairy, vegetables and drinks
Cons of Buying a Bottom Freezer Refrigerator
A bottom freezer refrigerator is usually more expensive than a top freezer refrigerator
There is more bending and a swing door bottom freezer is hard to access. People with bad backs are better to stick with a regular top freezer refrigerator
Higher repair rate. For some reason bottom freezer refrigerators break down more often
There is less choice of refrigerators. There seem to be fewer choices in the finish of bottom freezer refrigerators
Hope this helps.
