Wise's biggest problems are transparency and consistency.
I have been using Wise for 6 years in Thailand and the Philippines and there is definitely a difference.
I use Remitly for my Cambodian transfers. There is no exchange rate for me (USD to USD) and a fixed fee. There are two sending prices, economy ( from your home bank account at 4 to 5 days) or express (from a debit/credit card at the same day). The difference is about $4. I am notified of every step. For any issue at any time of the day. I can even deposit into my Cambodian bank's debit card and directly into my account, something I have never heard of before. I can get very fast chat service where everything can be explained should there be any questions. No mysteries.