池袋之家別館環境 is okay. Clean and tidy. But I am not sure which kind of room you have reserved. Please look at the following web page to see the environment ;
http://www.housejp.com.tw/page/englishroom02.htm
Please note this is the office web site of 池袋之家, but you cannot find any picture of the 別館 except in the above English page.
For other information such as traffic, facilities, etc. you can use the same web site.
Have a nice journey !