Which is better: OWLS Co., Ltd. or ALTIA CENTRAL for ALT work in Japan?

Hey everyone,
I’m currently comparing two ALT companies in Japan OWLS Co., Ltd. and ALTIA CENTRAL — and I’d really appreciate some honest feedback or experiences.

From what I understand:

• OWLS offers a monthly salary between ¥220,000 and ¥240,000 + ¥15,000 transportation allowance. They mention standard social insurance, but I’m hearing that housing and relocation costs can be quite high.
• ALTIA CENTRAL seems to have more structure and maybe more support, but I’m not clear on the salary differences, placements, or work expectations.

If you’ve worked with either (or both!), could you share:

• How was the support/training?
• How reliable are the pay and placement?
• Are there any red flags or hidden challenges?
• Which would you personally recommend for a first-time ALT?

Thanks so much!