Abu Ahmad al-Hakim: He is not strong (reliable) according to them.
Abu Ahmad ibn Adi al-Jurjani: Some of his hadiths are corroborated, and some are not.
Abu Bishr al-Dulabi: Weak
Abu Bakr al-Bazzar: He is not considered a حافظ (hafidh - one who has memorized a vast number of hadiths) according to them, and once said: There is no problem with him.
Abu Hatim al-Razi: Lenient in hadith, his hadith is written but not used as evidence, he is not strong.
Abu Hatim ibn Hibban al-Busti: He was a righteous sheikh, but the hadith was not his craft, so when he narrated, he would alter the reports until he went beyond the limits of using them as evidence.
Abu Dawud al-Sijistani: Weak
Abu Isa al-Tirmidhi: Sadaqah is not considered that strong by them.
Abu Nuaym al-Isbahani: Famous
Ahmad ibn Shuayb al-Nasa'i: Weak
Ibn Hajar al-'Asqalani: Truthful, but he has some mistakes.
Al-Daraqutni: Abandoned, even accused.
Al-Dhahabi: Weak
Zakariya ibn Yahya al-Saji: Weak in Hadith
Muslim ibn Ibrahim al-Dawraqi: Truthful
Authors of Tahrir Taqrib al-Tahdhib: Weak, no major scholar has authenticated him, so from where did he get truthfulness?
Yahya ibn Ma'in: His hadith is nothing special, and once said: Weak