Plug&Play Pool Systems review for Ymq B2B & Wholesale Solution

UPDATE 2 March 18: After allowing YMQ dev on March 13 to install a test version to fix my initial malfunction, they now seem to have exploiting it to install what I call a hack that prevents us to sell anything, regardless B2B or B2C. Through 1 of their javascript extensions, I cannot reach in code myself to disable them, they disabled the checkout button on my cart page with JS triggered inline CSS ["checkout"] {display:none !important;} Under no functional circumstances an app should be allowed to disable checkout. Witness the screen at imgur dot com slach 5Ls7IJu. This app developer does not deserve to be active on one of biggest e-commerce platforms. --- UPDATE March 14: YMQ dev fixed the discount issue 2 days ago, but immediately discovered that the main functionality we chose this app for, being the EU tax exemption for B2B customers, no longer works. During checkout, with a valid VAT-number provided in the cart, tax is no longer deducted. This is a major issue where I haven't received feedback from in the past 48 hours. Downgrading my stars from 3 to 1 for not acknowledging the issue with prompt customer service feedback. --- This broad featured app has served us well over the past year. Very intuitive setup and configuration, seamless integration in our selected theme. Translation is only available in 1 language via the apps configuration, so alternatives via frontend javascript required to be coded. Recently, after activation of Shopify's product discounts, we discovered that discounts are no longer correctly shown in the cart. After contacting YMQ support they acknowledged the dev issue and promised to fix it ASAP. In attendance, we can't use discounts on our production sites, neither disable the b2b code part causing the issue. I will update the review in a month with the actual status.