Okay. From the comments we have more points. So far we have...
1. Blockchain size for storage and downloading;
2. Number of transactions causes impractical updating of the blockchain because of bandwidth limitations;
3. Impractical confirmation time without a fee;
4. Unreasonably long confirmation time even with a fee;
5, (more?).
1. I agree with that
2. Working on it, it'll get it ok

3. Fees are incredibly low, just pay it xD
4. Nah with a fee it's really fast! It takes a few minutes for the first one.