What are the Strengths and Weaknesses of the House of Lords?

S: The Lord's Unelected Nature gives them a more Long Term focus on Legislation rather than Short Term Public Opinion S: Since 1999, the Lords have been more willing to Scrutinise the Government S: 1999 Reforms made the House more Legitimate with more Experts and less Peers W: The unelected Nature of the Lords undermines their legitimacy W: Salisbury Convention and Parliaments Acts of 1911and 1949 have limited the Lord Powers W: Inclusion of the Lord's Spiritual (Bishops of CoE) and Hereditary Peers undermines the Representative Function that the Lords have