I love my hamster hands down! I never regret it. But here are some things others may not tolerate. 1. Nocturnal. You cant play with it during the day. 2.Cage prices. I use a tank they cost a lot. Cages do too. Unless you get a critter trail (don't recommend) 3. Not just food and water! Nope, you need, chews, bedding, food, supplements, treats, a wheel, and if your hamster doesn't like it you have to buy something else. That brings us to the next one. 4. Pricey! ho thought they are cheap! Bedding cost a lot! I thought I would almost never have to change it but that odor, says different. That brings us to the next one. 5. Odor. I thought rats smelled, so do hamsters! No getting away on this one! I spot clean 1-3 times.... a day! And I frequently need to buy expensive bedding. That brings us to the next one. They use that restroom A LOT. It comes in then out. I spend at min 15 mins cleaning! 6. Bites! OUCH OUCH OUCHIE! Yeah, she bites if I am trying to get her out of something. That brings us to the next one. 7. They got da zoomies! They run fast and get into places you do not want them to get into! 8. They tickle. Yeah, they hard core ticklers! Hope you enjoyed!!!