Yes—there can be a few tradeoffs, though they may be minor depending on your needs.

Possible disadvantages:

• microSD has historically offered slower options than full-size SD, though this is less of an issue with current cards.
• microSD cards can cost more.
• The adapter adds another part that can fail, be lost, or fit inconsistently.
• Very cheap adapters may have poor mechanical or electrical tolerances, so a card may work in one device but not another.
• microSD cards are tiny, so they’re easier to misplace or handle awkwardly.

If the convenience of moving the card directly to your tablet matters, using microSD with an adapter is a reasonable approach. Just use a good-quality, reputable adapter rather than the cheapest no-name option, and make sure the card’s speed is sufficient for your camera’s shooting and video needs.